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Jman100 968K Views
Dec 19, 2020 7:55 PM

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

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Deal Details
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.

Editor's Notes

Written by StrawMan86 | Staff
Please refer to the forum thread for additional details and discussion. -StrawMan86

Original Post

Written by Jman100
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
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.

Editor's Notes

Written by StrawMan86 | Staff
Please refer to the forum thread for additional details and discussion. -StrawMan86

Original Post

Written by Jman100

Community Voting

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4.2K Comments

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Dec 25, 2020 6:14 AM
366 Comments
Joined Feb 2014
BigB89Dec 25, 2020 6:14 AM
366 Comments
Quote from Nayuta View quoted comment :
We cross our fingers and wait to see what happens. Hopefully, someone can give us a more definite answer.
OP said BYOD offer doesnt stack with Freeline.. But someone mentioned free line stacks with A11 offer costco has.. why did you try that ?
Dec 25, 2020 6:26 AM
476 Comments
Joined Jun 2005
NayutaDec 25, 2020 6:26 AM
476 Comments
Quote from BigB89 View quoted comment :
OP said BYOD offer doesnt stack with Freeline.. But someone mentioned free line stacks with A11 offer costco has.. why did you try that ?
I was at Costco and they said the BYOD would stack with free line. But I haven't submitted the rebate online yet so it shouldn't affect the free line. Correct?
Dec 25, 2020 6:46 AM
478 Comments
Joined Jan 2015
o4sDec 25, 2020 6:46 AM
478 Comments
Quote from Nayuta View quoted comment :
I was at Costco and they said the BYOD would stack with free line. But I haven't submitted the rebate online yet so it shouldn't affect the free line. Correct?
try to get the A11 deal instead of byod. you get $100 for that as well.
Dec 25, 2020 6:48 AM
476 Comments
Joined Jun 2005
NayutaDec 25, 2020 6:48 AM
476 Comments
Quote from o4s View quoted comment :
try to get the A11 deal instead of byod. you get $100 for that as well.
Isn't it too late now that I already signed up for the BYOD $100 and the free line? Do you think I can go back and tell them that I don't want the BYOD and take the A11 instead?
Dec 25, 2020 6:59 AM
4.7K Comments
Joined Dec 2010
needgeechDec 25, 2020 6:59 AM
4.7K Comments
Same as all the others. . .double accounting of FLOU3:


$10 AutoPay Discount

$24 Insider Discount

$25 AutoPay Discount (Additional Lines)
$20 2020 3rd Line On Us (Additional Lines)
$20 2020 Line On Us (Additional Lines)
$20 2020 Line On Us 2 (Additional Lines)
$40 2020 Line on Us 3 (Additional Lines)

Because of the "sprint former customer curse" I am now being charged $100 deposit per line after 5, which turned out to be after 6 lines. I fretted the $100 deposit, but they gave me a $50 credit to "soften the deposit blow". . .so not that mad, 50% ROI upfront on that $100, plus guessing another 1.2% lol on the original principal, on a 6 month term and return of principal.
Last edited by needgeech December 24, 2020 at 11:49 PM.
Dec 25, 2020 7:14 AM
478 Comments
Joined Jan 2015
o4sDec 25, 2020 7:14 AM
478 Comments
Quote from Nayuta View quoted comment :
Isn't it too late now that I already signed up for the BYOD $100 and the free line? Do you think I can go back and tell them that I don't want the BYOD and take the A11 instead?
Just try and see if they agree to do the swap. you are still under your return window.
Dec 25, 2020 7:21 AM
33 Comments
Joined Jan 2014
Mekks082Dec 25, 2020 7:21 AM
33 Comments
I had the 2/100 deal with kickback, called and tried to add a line (again) and was told again I would have to switch plans. Being its xmas and the kid needs a phone finally. I switched to the 2/120 magenta plan with the free line.

They would not move the kickback over so I guess im looking at an extra $20-30 a month. After next months bill comes I will see where I land.

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Dec 25, 2020 7:25 AM
366 Comments
Joined Feb 2014
BigB89Dec 25, 2020 7:25 AM
366 Comments
Quote from o4s View quoted comment :
Just try and see if they agree to do the swap. you are still under your return window.
what is return window at costco ? or is it t-mobile?
Dec 25, 2020 7:26 AM
4.7K Comments
Joined Dec 2010
needgeechDec 25, 2020 7:26 AM
4.7K Comments
Quote from Nayuta View quoted comment :
I was at Costco and they said the BYOD would stack with free line. But I haven't submitted the rebate online yet so it shouldn't affect the free line. Correct?
Jman100 isn't some random poster, he's a TMO employee with trusted insider info beyond what is normal here from other TMO deal OP's,

He knows when these deals happen a day before anyone else. He usually knows when these deals are on the last day before anyone else.

He said the BOYD costco doesn't stack this round. Do you want to chance it given above?

With a grain of salt, but the last free line said only port from ATT or VZW but I ported from GV, and it did pay off. But then again there was no big warning sign like the "NO COSTCO BYOD" warning this time. . .it only said port from ATT or VZW (and specifically did not exclude GV).

I would rather chance the A11 route than go for something specifically prohibited this round (Costco BYOD $100). . .or just take the free line and call it a day. But many have submitted the $100, only time will tell.
Last edited by needgeech December 24, 2020 at 11:37 PM.
Dec 25, 2020 7:34 AM
80 Comments
Joined Feb 2019
PurpleLanguage405Dec 25, 2020 7:34 AM
80 Comments
If TMO specifically document somewhere the free line is not stackable with costco BYOD, anyone trying to get the BYOD would potentially risk the free line status. The 3rd-party rebate center does check with TMO for the line status before approve the rebate. Even the rebate is not from TMO, but I guess TMO would know.
Dec 25, 2020 7:58 AM
730 Comments
Joined Aug 2019
GreenCreature437Dec 25, 2020 7:58 AM
730 Comments
Quote from Mekks082 View quoted comment :
I had the 2/100 deal with kickback, called and tried to add a line (again) and was told again I would have to switch plans. Being its xmas and the kid needs a phone finally. I switched to the 2/120 magenta plan with the free line.

They would not move the kickback over so I guess im looking at an extra $20-30 a month. After next months bill comes I will see where I land.
You read the wiki?
Dec 25, 2020 8:06 AM
4.7K Comments
Joined Dec 2010
needgeechDec 25, 2020 8:06 AM
4.7K Comments
Quote from BigB89 View quoted comment :
what is return window at costco ? or is it t-mobile?
phones at Costco are 90 days, but plans are not. . .standard TMO rules.
Dec 25, 2020 9:03 AM
1.9K Comments
Joined Dec 2018
purpledime18Dec 25, 2020 9:03 AM
1.9K Comments
Quote from gotojanoo View quoted comment :
Rep confirmed its glich. Basically its removed LOU3 and then added back. So it will take time to update system

System memo: Discount Plan Added, Eff date:12/24/2020, Exp date:No Expiration, Discount:****** - 2020 Line on Us 3, User:*****
May I know Where you see this system memo?
Dec 25, 2020 9:51 AM
810 Comments
Joined Jul 2008
rampenDec 25, 2020 9:51 AM
810 Comments
Quote from Nayuta View quoted comment :
Isn't it too late now that I already signed up for the BYOD $100 and the free line? Do you think I can go back and tell them that I don't want the BYOD and take the A11 instead?
It's too late now...as a11 deal ends on 12/24 as of now.

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Dec 25, 2020 10:08 AM
478 Comments
Joined Jan 2015
o4sDec 25, 2020 10:08 AM
478 Comments
Quote from BigB89 View quoted comment :
what is return window at costco ? or is it t-mobile?
14 days for tmobile plan or line changes and 90 day return policy for device

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