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Select T-Mobile Accounts w/ Qualifying 2+ Line Plans: Get A New Line EXPIRED

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T-Mobile.com offers Existing T-Mobile Customers on Eligible Plans with 2 Lines or More to add a New Line for Free (via monthly bill credits).

Thanks to community member coolchicagoguy for finding this deal.

What Do I Need To Do To Get This Offer?
  • This is a targeted offer from T-Mobile and is only open to select existing customers that meet the following requirement:
    • You must have a qualifying T-Mobile postpaid plan with 2 or more lines that falls under one of the following SOC Codes shown in this image (thanks to Reddit user Jman100_JCMP; see instructions below on how to find your SOC code).
      • SOC (Service Order Code) is the technical term used to describe plans and services that are added to customers' accounts within T-Mobile's billing systems.
    • If you are certain you qualify, login to your account below and:
    • Alternatively, you may call T-Mobile and a representative can assist you with adding your 3rd line.
      • If calling, promotion name is "2021 Line On Us P6".
Instructions to find your SOC code (thanks to Reddit user massiveprodigy):
  1. Using the Google Chrome web browser (desktop version), open the Developer tools panel on the right (Ctrl+Shift+I)
  2. Click on Network tab
  3. Click on XHR tab
  4. Log in my.t-Mobile.com and click Account at the top.
  5. In developer tools panel, choose manageaccount from the list on the left
  6. Account level promos will appear under accountDiscounts
  7. Line level features will appear under lines > # > addOns
  8. If there is a pending change, you can see exactly what it is by clicking productsPendingChange
  9. Rate plan appears under ratePlans
Can This Be Combined With Other Offers?
  • Can be combined with device offers on the same line.
  • Costco & T-Mobile rebate promos are NOT stackable with the free line.
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Original Post

Written by
Edited March 16, 2021 at 01:27 PM by
Free line requires 2+ existing lines. New customers or existing customers with one line have different requirements. Does NOT stack with Costco or T-Mobile rebates.

https://www.reddit.com/r/tmobile/...free_line/

From Reddit:
Customers on an eligible plan (list below) with 2 or more paid voice lines can add another voice line for free via monthly bill credits. Business plans are included. Customers must not already be at their rate plan's maximum number of lines. Business customers must have less than 12 lines to qualify.

You must maintain all the lines you have now + the free one for 12 months to keep the free line credits. After that, you must maintain at least 2 paid lines + this free line to keep the bill credits.

This promo will actively take priority over the current Third Line Free promo. This means new accounts adding 3 lines or existing accounts with 1 line adding 2 lines will receive this promo, not third line free, meaning they will not stack unless you already had third line free to begin with.

The free line stacks with phone promos currently available, as well as Carrier Freedom/Keep and Switch/Zero Cost to Switch. It does not stack with Costco or T-Mobile rebate promos.

BOGO for T-Mobile ends 3/16 - https://slickdeals.net/f/14878039-t-mobile-2021-buy-one-get-one-voice-add-a-line-for-existing-customers-ymmw

20% Hookup - https://www.reddit.com/r/tmobile/..._17th_for/ - This is YMMV for targeted Home Internet & Connected Device customers.

From Reddit:
Starting March 17th the Insider Hookup will return for existing T-Mobile customers that have Home Internet or Connected Devices with no voice lines.

This promo will allow you to port in from your existing carrier and get 20% off all voice lines for the lifetime of the account.

To clarify: The only people eligible for this upcoming Insider Hookup are Existing T-Mobile customers that do NOT already have voice lines at all. You must have Home Internet from T-Mobile or a connected device like a tablet or hotspot, but you can not already have voice lines.

QA note: YMMV https://www.t-mobile.com/offers/deals-hub
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Community Wiki

Last Edited by Jman100 March 23, 2021 at 08:46 AM
TODAY IS THE LAST DAY FOR THIS PROMO AS WELL AS THE IPHONE PROMOS.
If you are using a phone promo on the free line that requires a port in, you MUST complete the port in by end of day TODAY, March 23rd.

--------

T-Mobile has updated the SOC list again to revert it back to an earlier version. It now includes more SOCs. The SOC image in the main post has been updated. -- Jman100

--------

To find your SOC code for your rate plan, you can call CS 611 and ask, or figure it out yourself:
  1. Install the Chrome extension: https://chrome.google.com/webstor...ldjhocmmpl
  2. Add the Firefox extension: https://addons.mozilla.org/en-US/...mo-helper/
  3. Go old school and sift through the web code: https://www.reddit.com/r/tmobile/...soc_codes/
Maximum (Voice) Lines per SOC code:
SCFUTTBD: 10 lines

-------
Quote from ouloat :
For anyone looking to buy a iPhone 8 for the trade-in requirement for Tmobile's iPhone 12, the following are the different sources ranked from best to worst. Keep in mind the phone carrier doesn't matter for the trade-in, so it can be unlocked, AT&T, Verizon, T-mobile, anything. Phone must not have water damage, cracked screen, anything that could be perceived as a cracked screen, password lock, or icloud lock. Small dents, scratches, screen burn, and weak batteries are okay.

Trademore - iPhone 8 starting at $159 [trademore.com]
Folks in the Cricket iPhone SE thread been trading their iPhone SE's for $200 Paypal from Trademore, so we know they are legit. They are also the trade-in inspector one of the cell carriers (Verizon or AT&T), so doubt they will sell anything that doesn't pass inspection. They will probably be your safest bet to acquire a good quality trade-in. Shipping is included in the price.

Swappa - iPhone 8 starting at $158 [swappa.com]
Swappa's policy is no junk, so you are covered if you receive something you can't trade in. That said, since everyone is a third party, you get a wide variety of prices and conditions. I have received cracked screens before, but the seller took it back immediately. Still, this may cause you to lose this Tmobile promotion. Shipping is included in the price.

Local (Craigslist, Offerup, etc)
Your experience will vary, and the onus is on you to validate the phone is ready for trade-in. You might score with a great deal, or you might get ripped off. Only go this route if you know how to inspect phones or you need the phone the same day.

eBay [ebay.com]
You will have to read each listing very carefully, since there are listings for cracked, water damaged, icloud locked, or otherwise untradeable phones. Returns policies also vary by seller. Unless you score an amazing deal on ebay, Trademore or Swappa are safer options.
Questions & Answers BETA
coolsport1122 asked this question on 03-17-2021 at 05:25 PM
Expert
03-17-2021 at 07:01 PM
Yes, this is normal. Some waive $20 assistance fee. I was given $10 courtesy credit on the account so I can get the SIM for free. It really depends on the rep you get.
03-17-2021 at 10:45 PM
Just got this promo, I called to get the line and the lady said there is a $30 charge but the $30 was credited back as soon as she placed the order for the sim.
Danielitatorres asked this question on 03-17-2021 at 11:47 AM
Expert
03-18-2021 at 12:51 AM
Sprint may have its own free line promo, as those users are not moved to T-Mo plans. Worth checking with CS for available options.
JB112 asked this question on 03-17-2021 at 12:52 PM
Expert
03-18-2021 at 12:54 AM
Voice lines only, as in phones. Some are lucky to have this working in tablets etc by having CS disable voice and allowing unlimited data / SMS to work. T-Mo could disable if SIM is used in anything other than a phone.
VagrantAI asked this question on 03-18-2021 at 01:46 AM
Expert
03-18-2021 at 04:09 AM
You can swap SIMs and use your current number in new phone. However, for bill credits to work, the new line of service should also remain open.
eisen.iitm asked this question on 03-18-2021 at 09:33 AM
03-18-2021 at 07:15 PM
I'd day call TM and check with them directly.
pupster asked this question on 03-17-2021 at 02:20 PM

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This comment has been rated as unhelpful by Slickdeals users
Joined Sep 2012
L4: Apprentice
385 Posts
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#1576
Quote from dishguy :
If I read correctly you have 9 lines now. I'm on simple choice and you should be able to add up to 10 voice lines on SC. I have 10 voice and one data line. 6 lines are included in my plan, 1 paid and 3 free lines. Going to cancel the paid line in December.
I asked a rep and they said I can have 15. Apparently there are multiple configurations for simple choice. If you cancel a paid line can you move the number to a free line?
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#1577
Quote from DaRChSTaR :
They had me in the wrong promo code...Instead of the free SE with port in and AAL, they put me in the 2020 Apple Activate P9 which is 50% off..Is going thru TForce better than customer service over the phone?
The free iphone se requires port in. 50% off is without the port in. So once you port in a number, it should switch to the T536 promo or you can contact tforce if it didn't.
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#1578
Quote from SammiC4628 :
The free iphone se requires port in. 50% off is without the port in. So once you port in a number, it should switch to the T536 promo or you can contact tforce if it didn't.
Free iphone se (with port in) is via 24 months credit right ? so you have to keep the free line active for 24 months right ?
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#1579
Quote from anthony2n :
Did costco charge any fees (activation, sim card etc)? Did you have to bring your device to them at the time? Can you enable the device later?
They did not. Free activation and Sim card.
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#1580
Quote from MagentaPlastic461 :
Just went to costco today and this offer is stackable with the BYOD $150 Costco Cash Card.
Did you have to tell the Costco rep to add the line as a free line or they did it as a regular addition and it showed as free line on your account, i was planning to head to Costco to do the same as you did.
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Joined May 2017
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#1581
Quote from goodguys21 :
Free iphone se (with port in) is via 24 months credit right ? so you have to keep the free line active for 24 months right ?
Yes, it's 24 months bill credits and you can't cancel the line before 24 months or you owe the full value of the device
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Joined Dec 2010
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#1582
Quote from passionate :
I already bought a number from numberbarn. How can I check if it will work with the promotion?
Quote from crazy.dude :
If its non tmobile mvno or non GV it should work, unless the account info is incorrect. Check the port in number at tmobile site for eligibility. Not a guarantee it will work, but good to know tmobile recognizes it for port in.

https://www.t-mobile.com/resource...our-number
Port in # is not required to avail the Free line offer. It is only needed if you want free line + phone promo that requires port in--i.e. $830 off iP12 or Free iPSE 2020 (not 50% off)

i think there is some confusion between is my number able to port (any non TMO # ). . .and will this port # satisfy the port in phone promo requirements (i.e. only ATT or VZW or mvno exclusively on their networks for your particular mvno sim card or #)
The link above answers the former but doesn't address eligibility for port promo.

would try freecarrierlookup.com to find which carrier the line is "currently from"
if it says its VZW or ATT then you are set.

but if it says landline, TMO or Sprint or Bandwidth (GV) then no guarantees your PROMO WILL STICK PAST 2ND MONTH EVEN IF APPROVED AND SHOWS ON YOUR ACCOUNT NOW.
most of those number barn #'s trace back to Bandwidth

why risk losing the $830 or$800 in credits? just get an att or vzw mvno prepaid # to be safe
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Last edited by needgeech March 20, 2021 at 01:06 PM.

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Our community has rated this post as helpful. If you agree, why not thank ?
#1583
For anyone looking to buy a iPhone 8 for the trade-in requirement for Tmobile's iPhone 12, the following are the different sources ranked from best to worst. Keep in mind the phone carrier doesn't matter for the trade-in, so it can be unlocked, AT&T, Verizon, T-mobile, anything. Phone must not have water damage, cracked screen, anything that could be perceived as a cracked screen, password lock, or icloud lock. Small dents, scratches, screen burn, and weak batteries are okay.

Trademore - iPhone 8 starting at $159 [trademore.com]
Folks in the Cricket iPhone SE thread been trading their iPhone SE's for $200 Paypal from Trademore, so we know they are legit. They are also the trade-in inspector one of the cell carriers (Verizon or AT&T), so doubt they will sell anything that doesn't pass inspection. They will probably be your safest bet to acquire a good quality trade-in. Shipping is included in the price.

Swappa - iPhone 8 starting at $158 [swappa.com]
Swappa's policy is no junk, so you are covered if you receive something you can't trade in. That said, since everyone is a third party, you get a wide variety of prices and conditions. I have received cracked screens before, but the seller took it back immediately. Still, this may cause you to lose this Tmobile promotion. Shipping is included in the price.

Local (Craigslist, Offerup, etc)
Your experience will vary, and the onus is on you to validate the phone is ready for trade-in. You might score with a great deal, or you might get ripped off. Only go this route if you know how to inspect phones or you need the phone the same day.

eBay [ebay.com]
You will have to read each listing very carefully, since there are listings for cracked, water damaged, icloud locked, or otherwise untradeable phones. Returns policies also vary by seller. Unless you score an amazing deal on ebay, Trademore or Swappa are safer options.
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#1584
Quote from MagentaPlastic461 :
Just went to costco today and this offer is stackable with the BYOD $150 Costco Cash Card.
Did you take two lines or one line? If it is BYOD I assume it is two lines. Once you come home need to call Tmobile to get first line free? If you added two lines are both lines free for two years? Can you explain steps? Also is it guaranteed to get trade in value if we go by Costco route?
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#1585
Quote from mgutta :
Did you take two lines or one line? If it is BYOD I assume it is two lines. Once you come home need to call Tmobile to get first line free? If you added two lines are both lines free for two years? Can you explain steps? Also is it guaranteed to get trade in value if we go by Costco route?
Last week's BOGO add a line was 2 lines (add 2 lines, 2nd one becomes free). This Free Line is just a single line. No need to take two lines unless you only have 1 line total on your account.

If you are qualified for the free line the TMO system should apply it automatically to your account within a day or so for most people. No need to ask the costco rep to apply "a free line" they just need to add "a" line.

Only one free line per free line promo offer. I.e. you could have got the BOGO free line last week, plus the Free Line on Us 6 this week. They are good "forever" as long as you keep the lines active and don't cancel any other lines previously on account for 12 months, and maintain 2 paid lines at all times, and look before you leap onto another plan to make sure the free lines will stick, etc.

Costco usually doesn't do trade ins. They have similar deals to TMO, but they are different deals and on phones are usually rebate cards 2 months later after you buy phones paid in full at the store.

Some people are going to open the line at costco for the $150 rebate card, and then trying a day or two later to go to TMO store or online to add the iPhone trade/port in deal to that same line from costco
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Last edited by needgeech March 20, 2021 at 11:39 AM.
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Joined Mar 2010
L4: Apprentice
432 Posts
#1586
Ok, for those that switched plans and then added the free line, you need to wait for the free line to show up before contacting t-mobile to fix the bill. i ended up contacting them 2 time afterwards and finally everything is back to normal... could have done it with just 1 if I waited.
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#1587
Quote from winsarkar :
Please read the parent Reddit Post. A bunch of codes got taken off the list at 9P EST - it was just updated after my post. The TIUNL2 and bunch of Amplified plans are part of it. Not sure what happens if you added a line before the SOC Codes got taken off the list.
I chatted with a CSR and he told me TIUNL2, Amplified, is not qualified. Oh.. well..
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Joined Oct 2013
L1: Learner
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#1588
Quote from SammiC4628 :
The free iphone se requires port in. 50% off is without the port in. So once you port in a number, it should switch to the T536 promo or you can contact tforce if it didn't.
How long does it take to switch to the proper promo? My port in is already completed.
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#1589
Quote from DaRChSTaR :
How long does it take to switch to the proper promo? My port in is already completed.
Tforce told me it could take up to 2 billing cycles.
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#1590
Quote from gotojanoo :
you will be getting credit of $830 through out 24 months. u will have to pay it off otherwise buyer will see unpaid balance on phone .
How would they see the unpaid balance? And if I sold it to someone on TMobile then it wouldn't have to be unlocked, right? Thanks for any info c
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