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

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+562 Deal Score
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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.

Thanks to community member Jman100 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 (see instructions below on how to find your SOC code).
      • SOC (Service Order Code): 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 "2020 Line On Us 4".
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?
  • This deal CANNOT be combined with any of the following current T-Mobile promotional offers:
    • iPhone 12 "on us" (2020 Apple Trade Activate P3)
    • BOGO iPhone (2020 Apple Buy 2 P11)
    • Free Galaxy A71 5G with new line (2020 Samsung Activate P12)
    • Free OnePlus 8/8T+ 5G with new line (2020 OnePlus Activate P5)
    • Costco BYOD promos
    • TFB-exclusive promos
  • By participating in any of these offers above while using your new free line, you will forfeit the free line terms and will have to pay for that line.
Good Deal?

Original Post

Written by
Edited December 20, 2020 at 03:25 PM by
Starting December 20th customers on an eligible plan with at least 2 paid lines can add a line for free.


Eligible SOC list: https://i.imgur.com/LZegl3r.jpg

Please note: There's a lot of misinformation and confusion around this promo. Inevitable when a promo like this happens half a month after an identical one just ended. Here are some critical nuggets of info:
  • The promo is called "2020 Line On Us 4"
  • It is fully stackable with "2020 Line On Us 3"
  • Internal docs mention a scenario where it isn't stackable. It is referring to "third line free" promos and only to accounts opened on the 20th or later. This appears to be causing confusion.
  • The promo seems to be showing on accounts as line on us 3 (double if you already had it). It's a known issue and being worked on. Will not affect eligibility.

Offer now available. Some reps are not yet aware of the promo's existence, so please be patient with them. You can also add the line as normal online and the promo will automatically apply within a bill cycle.

Ineligible stackable promos:
  • iPhone 12 "on us" (2020 Apple Trade Activate P3)
  • BOGO iPhone (2020 Apple Buy 2 P11)
  • Free Galaxy A71 5G with new line (2020 Samsung Activate P12)
  • Free OnePlus 8/8T+ 5G with new line (2020 OnePlus Activate P5)
  • Costco BYOD promos
  • TFB-exclusive promos

(PS: check this post here https://www.reddit.com/r/tmobile/..._your_soc/ to get a Chrome or Firefox extension that will make finding your SOC easy, or see the guide here https://reddit.com/r/tmobile/comm...soc_codes/ to find it manually)

Disclaimer: This is info based on leaked documents, and is subject to change. Any noticed changes will be added to this post when learned.

https://t-mobile.com
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Community Wiki

Last Edited by HurricaneAlley January 6, 2021 at 09:05 PM
DEAD
Promotion ENDED 12/31/2020
DEAD

Free Line CAN be stacked with these New Line offers
1) iPhone SE 50% off
2) REVVL 50% off
3) Pixel 4a 5G 50% off
4) Costco Free A11 + $100 for new Lines ( NOT BYOD)

(Not 100% if works, but not listed on Ineligible list)
5) S20FE BOGO Free
6) Samsung BOGO $1000 off or Costco $810 off


20% Hookup codes:

EMPFNBM = Tmo 1 for older plans
NTMEMP20= New TMO Insider Voice 20% for Magenta

-----------------------------------------------------
PSA: COSTCO BYOD IS NOT STACKABLE!
They specifically call this out in the docs this time.

-----------------------------------------------------
Browser extensions to find your SOC easier
Chrome: https://chrome.google.com/webstor...ldjhocmmpl
Firefox: https://addons.mozilla.org/en-US/...mo-helper/

-----------------------------------------------------
t-mobile soc:
1. How to find:
https://www.reddit.com/r/tmobile/...soc_codes/
2. List of soc codes:
https://docs.google.com/spreadshe...1340439917


If your promo isn't working under your account properly try this (worked for me):
https://slickdeals.net/forums/showpost.php?p=143239985&postcount=899


Still on TMO ONE All In Promo plan (FRLTUL2LP) which is never eligible for free lines?

This is a great (grandfathered) plan as it gives you 2 lines for $100 or $80 after 2GB data limit kickback on the 2 lines (or even less if you have the plan with T-Mobile employee hookup code). Plus with the additional promotion you get HD streaming, 10GB full speed hotspot and twice the international data speed (256kbs instead of 128kbs).

BUT... this account only supports 3 lines and unless you got the one free line they offered once under this plan you never got and will never get a free line with the plan.

But if the plan works out for you can move to another T-Mobile One plan (FRLTULF2) which cost a little bit more (2 lines for $120 or $100 after kickbacks) but you will be eligible for the free line and hopefully for additional free lines in the future (the plan supports up to 8 lines in total). The reps are also be able to move the kickback and ONE Plus promotion to the new plan. They might not do it immediately for the new free line but this is also possible and might need another try.
Plus the new plan includes $10.99 Netflix Standard HD account contribution which also needs to be factored in as a bonus.

If you want to get out of that hole and make the change here is my conversation regarding the plan change with T-Force on Twitter:
https://slickdeals.net/f/14713250-t-mobile-customers-add-a-line-for-free-starting-december-20th?p=144023981#post144023981

Then I called 611 at night and asked the overseas team to also add the promo add-ons to new free line so that all lines on the account have the ONE Plus promo (no kickback on the free line of course):
https://slickdeals.net/f/14713250-t-mobile-customers-add-a-line-for-free-starting-december-20th?p=144031265#post144031265

Summary of the process and overview of changes:
https://slickdeals.net/f/14713250-t-mobile-customers-add-a-line-for-free-starting-december-20th?p=144039584#post144039584

As I wrote it needs some time and the right reps to make it happen as I struggled with reps in the past to switch to a different T-Mobile One plan and not ending up with a Magenta plan and losing the kickback and One Plus promotion.
Good luck!

-----------------------------------------------------
Regarding costs to add new line

If you add the line via the website, youll pay $10 for the SIM card to be shipped to you.
If you add the line via a phone call, youll pay the $10 SIM card charge and also $20 for assisted set-up. It is relatively easy to get both of these comped.
If you have a spare sim-card or eSIM, you can use that instead of paying $10 for a new one (bear in mind that it may not be able to do SA 5G). You will need to call since the website does not allow re-use of old cards. (You can also do this via online chat support lines like in-app chat and t-force on twitter)
Expired cards do work, but you have to request a replacement. Again, no SA 5G.
If you have a Costco near you, they will give you the sim card and activate for you for free. You also may get the YMMV $100 cash card (but so far the jury is out if it actually will go through)


-----------------------------------------------------------
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Featured Comments

Do I need another free line? Nope. Will I get another free line? Yup.
My plan is never eligible Frown
Thank you for posting this and thanks to T-mobile, too

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Joined Nov 2020
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> bubble2 3 Posts
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TheKuyaLJ
12-20-2020 at 09:15 AM.
12-20-2020 at 09:15 AM.
I have the old T-Mobile One. I have a total of 8 voice lines with 2 tablets and 1 watch. I've taken advantage of every single free line promo except for the one from September 2020. I tried calling into T-Mobile and they are saying I don't qualify since I would be over the 8 lines. Is anyone else having this issue when they are going from the 8th to 9th voice line? I am also still waiting to hear back from T-Force.
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Joined Dec 2013
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> bubble2 378 Posts
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ciphercodes
12-20-2020 at 09:16 AM.
12-20-2020 at 09:16 AM.
Quote from BronxDiplomat :
It never will be. That SOC is capped at 2. I had the same issue and made them change mine to FRLTULF2. Now I get the free lines.
Thanks,
I have the hookup discount, will lose it if I switch to another SOC ?
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Joined Jan 2017
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> bubble2 31 Posts
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piyush.waghwani
12-20-2020 at 09:16 AM.
12-20-2020 at 09:16 AM.
thanks! just added a line online and hopefully, $20 for the line will get waived off. I can see that my SOC is valid.
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Joined Sep 2018
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> bubble2 97 Posts
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DanielF3054
12-20-2020 at 09:16 AM.
12-20-2020 at 09:16 AM.
Quote from sd2468 :
Anyone know the maximum number of lines for T-mobile ONE? I have 8, one of which is the FREE LINE ON US from before. When I try to add a line, I get the message that it's time to upgrade my plan to Magenta at a cost of $100 more.
Quote from TheKuyaLJ :
I have the old T-Mobile One. I have a total of 8 voice lines with 2 tablets and 1 watch. I've taken advantage of every single free line promo except for the one from September 2020. I tried calling into T-Mobile and they are saying I don't qualify since I would be over the 8 lines. Is anyone else having this issue when they are going from the 8th to 9th voice line? I am also still waiting to hear back from T-Force.
They moved me to the 9-12 plan for tmobile one from the last promo
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Joined Jun 2020
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> bubble2 262 Posts
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PentiumIV
12-20-2020 at 09:17 AM.
12-20-2020 at 09:17 AM.
This is concerning as no one has posted a screenshot showing this free line as "2020 Line On Us 4" as OP stated.
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Joined Sep 2009
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> bubble2 661 Posts
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linda85
12-20-2020 at 09:17 AM.
12-20-2020 at 09:17 AM.
Quote from Jman100 :
Yes 100%

Jman100:
Were you the one updated the wikis about Costco BYOD doesn't stack? If it was you, then I'll save my time and do it online instead. Thanks
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Joined Nov 2020
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> bubble2 3 Posts
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TheKuyaLJ
12-20-2020 at 09:17 AM.
12-20-2020 at 09:17 AM.
Quote from sd2468 :
Anyone know the maximum number of lines for T-mobile ONE? I have 8, one of which is the FREE LINE ON US from before. When I try to add a line, I get the message that it's time to upgrade my plan to Magenta at a cost of $100 more.

I got the same message. I am hoping to hear back from T-Force to see if this is possible to get the 9th line free. Everywhere I am seeing is that the T-Mobile One line can have up to 12 voice lines.
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Joined Sep 2017
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> bubble2 581 Posts
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orram
12-20-2020 at 09:17 AM.
12-20-2020 at 09:17 AM.
Quote from sd2468 :
Anyone know the maximum number of lines for T-mobile ONE? I have 8, one of which is the FREE LINE ON US from before. When I try to add a line, I get the message that it's time to upgrade my plan to Magenta at a cost of $100 more.

You might need to speak with a rep, the rate code for 9 lines should be TIULFM9.
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Joined Apr 2019
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dohmahmigh
12-20-2020 at 09:19 AM.
12-20-2020 at 09:19 AM.
Quote from kalawera :
Just got out from Costco, it's 100
Does anyone know if I'm able to use an old SIM card for adding this free line?
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sd2468
12-20-2020 at 09:20 AM.
12-20-2020 at 09:20 AM.
Quote from TheKuyaLJ :
I have the old T-Mobile One. I have a total of 8 voice lines with 2 tablets and 1 watch. I've taken advantage of every single free line promo except for the one from September 2020. I tried calling into T-Mobile and they are saying I don't qualify since I would be over the 8 lines. Is anyone else having this issue when they are going from the 8th to 9th voice line? I am also still waiting to hear back from T-Force.
Same here with 8 lines. When I try to add a line online or via the app, I get a message that I need to upgrade to Magenta, for about $100 more per month.
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Joined Dec 2010
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> bubble2 34 Posts
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jeffyor
12-20-2020 at 09:21 AM.
12-20-2020 at 09:21 AM.
Quote from dohmahmigh :
Does anyone know if I'm able to use an old SIM card for adding this free line?

If you're doing it at Costco it's free for the sim and activation
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Aquamx
12-20-2020 at 09:21 AM.
12-20-2020 at 09:21 AM.
Quote from DanielF3054 :
I just got a text that said..
You have been un-enroll from tmobile your promotional discount..
then another text follow by:
Congrats! you will receive your promotion service discount from t-mobile as long as your maintain eligibility....

Anyone get the same thing?
On t-mobile one plan, this line would be 10th line, i did it via phone call earlier, did the Nov line on us.
Not a good sign but try to chat xforce to confirm. Keep the chat transcript / screenshot.
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> bubble2 387 Posts
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BOOMGOESTHEDYNAMITE
12-20-2020 at 09:21 AM.
12-20-2020 at 09:21 AM.
Quote from linda85 :
I think yours didn't stick because you added 2 lines on the same promo line on us 2.
My point was one cannot have the same named promo even though at first it appeared confirmed online. If you notice the people w/ 12/20 free line promo said theirs appear "Line on Us 3 $40" (basically like how mine showed back in Sept). The point is if the promo name (or SOC) is the same, it will not stick unless Tmobile makes exception for this 12/20 somehow. The system has never allowed same name or SOC promo to stick is my point despite how many times the reps kept adding it back.

So what I'm wondering is how do we know for sure 12/20 is not some sort of continuation for 12/20 free line? I'll be happy to take another free line but I have Line on Us 3 from 11/25 and waiting for solid confirmation that 12/20 is not a "continuation" of 11/25 (same SOC code). So far no one can provide solid evidence, so I'm just going w/ my own very recent experience. I'll just wait 24-48h and hope someone can confirm their "combined Line on Us 3" stick or changes to Line on Us 4 or something....
4
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Last edited by BOOMGOESTHEDYNAMITE December 20, 2020 at 09:24 AM.
Joined Apr 2010
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> bubble2 100 Posts
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sd2468
12-20-2020 at 09:22 AM.
12-20-2020 at 09:22 AM.
Quote from TheKuyaLJ :
I got the same message. I am hoping to hear back from T-Force to see if this is possible to get the 9th line free. Everywhere I am seeing is that the T-Mobile One line can have up to 12 voice lines.
Maybe they have different T-Mobile ONE plans.
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Joined Oct 2014
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> bubble2 15 Posts
dizzydog
12-20-2020 at 09:23 AM.
12-20-2020 at 09:23 AM.
Confirmed that "2020 Line On Us 4" works for my very old "Simple Choice North America 6GB Family Match" plan.

I also scored a Free T-Mobile Proxy/Digit Line.

Thanks for sharing the awesome deal.
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