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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.

Editor's Notes & Price Research

Written by
  • Free line bill credits start within 2 bill cycles from activation; customers keep the credit for as long as they meet the promo requirements.
  • For one year after the offer's start date, customers must maintain the same number of voice (GSM) lines that were on the account when they enrolled in the offer.
  • After one year, customers must keep at least 2 paid voice lines AND the free new line that was activated to enroll in this offer to continue to receive the credit.
  • Please refer to the forum thread for additional deal ideas, details and discussion. Promotion available for a limited time. -StrawMan86
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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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Featured Comments

If you remove any paid lines within the first year, the free line loses the promo and becomes paid.

TMO doesn't want people doing what you're wanting to do.

To accomplish it, you would need to:

1. Add free line.
2. Wait a year + one day.
3. Port out paid line to another carrier.
4. Keep paid line active on another carrier for 90 days (to preserve number).
5. Port old number back in on free line.

This whole process has taken you 1.25 years. Peace
My port-in was initiated during T439 promo period and completed today outside of the promo period. Without the port in (with only the added line and traded-in) I was on a bad promo. Once the port-in completed today, the system auto updated to T439 promo in my account --> promotions. Therefore, I don't think it was a requirement the port-ins must be completed by 3/24 EOB, just as long as they are initiated.
YES, you can use this sim in your iPad. I pay for 2 lines and have 3 free lines on promotion (5 lines total)
I have 2 of my free lines in a iPad and a Samsung S4 tablet, with UNLIMITED data.
You have to call them and tell them you want to use the line (promo line) in a tablet but don't want to lose the promotion and you don't want to open a new line for this.
What they did for me, was block the phone service on the line and kept the messaging and data. That way I am able to use it in my tablet.
Every summer my daughter comes and visit from Germany. I take one of the sim card out of my tablet and put it in her phone..
I call T-Mobile and have them unblock the phone service. That way, my daughter has a phone while she is here in country.
When she leaves I call them back and get it blocked again. I have been doing this for close to 5 years. So I know for a fact it works.
Tomorrow I will be calling to try and get another free line.. (Fingers Crossed)
Hope this helps

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#4
There u go 1st free line in 2021 .
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#5
can I use this SIM on ipad once it is activated on phone? or TMO will disable it after while.
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#6
Thx OP and Jman!
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#7
In-store only? Or can I do this online?
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#8
Opened new account at Costco last week with 2 paid lines and 1 free line. Am I eligible to add a 4th line for free? Magenta, FWIW.
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#9
Personally - already on 20% Hookup with 6-lines for $112 plus 4 iPhones on EIP.

Seriously considering adding two to make use of Costco's BYOD ending today and then add this free line tomorrow. And so, "2021 AAL On Us" begins!! Big Grin
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#10
So... can I switch to one of the current plans that already has a free line (2 paid + 1 free). Then call tomorrow to get another free line?

Should also add that my current line has the 20% hookup? Would that carry forward too? Okay, I'm just dreaming.
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Last edited by pagames March 16, 2021 at 12:35 PM.

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#11
Quote from DealzSlickz :
can I use this SIM on ipad once it is activated on phone? or TMO will disable it after while.
It'll be disabled/limited severely after a short time.
Quote from LAST_EXIT :
Thx OP and Jman!
Wink
Quote from ALLEGAL :
In-store only? Or can I do this online?
Online is fine
Quote from Nudle :
Opened new account at Costco last week with 2 paid lines and 1 free line. Am I eligible to add a 4th line for free? Magenta, FWIW.
yes!
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#12
Quote from Nudle :
Opened new account at Costco last week with 2 paid lines and 1 free line. Am I eligible to add a 4th line for free? Magenta, FWIW.
I don't see a start date for eligibility for this free line. Magenta should work as it is their current plan. Usually you will run into issues if you have an older SOC. Screen grab in Reddit shows the list of eligible rate plans for this free line.
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03-16-2021 at 12:36 PM
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#14
Quote from pagames :
So... can I switch to one of the current plans that already has a free line (2 paid + 1 free). Then call tomorrow to get another free line?

Should also add that my current line has the 20% hookup? Would that carry forward too? Okay, I'm just dreaming.
What plan are you on currently?
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Quote from coolchicagoguy :
What plan are you on currently?
T-Mobile One single line. It's $70 but with hookup, I pay $56. Rarely I'll pay $48 if I go under 2GB
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