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forum threadtaleefoonka posted May 2, 2026 4:03 AM

$400 Virtual Prepaid Mastercard when you switch to T-mobile

T-Mobile
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Apparently, T-Mobile's recent greedy and anti-Un-carrier policies, along with moves from other carriers, have forced them to run another ( more numbers game). This time, the $400 is not a combination of Costco and T-Mobile rebates, instead, it is a single $300 or $400 virtual prepaid card from T-Mobile when you port your number over from the competition.

The Essentials plan ($100 plus taxes) will give you $300 per line. The 4-line plan for $170 will give you $400 per line for up to 4 lines, that is essentially 8 to 9 months of free service. And if you are able to snag an Insider Discount, it's an even better deal.

This deal also also stacks with the Keep & Switch promo. This is T-Mobile's standard switching promo that offers up to $800 back via rebate card to offset paying off your existing phone from your previous carrier.
​
This promo came last night, and as of right now, it seems Costco is still running its separate promotion. I am not sure if someone can get this T-Mobile promotion plus the $250 of the costco cash card, which would have made this deal a killer deal, but as of right now, it is not the case.

https://www.t-mobile.com/cell-pho...F83A546511
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About the Poster
Apparently, T-Mobile's recent greedy and anti-Un-carrier policies, along with moves from other carriers, have forced them to run another ( more numbers game). This time, the $400 is not a combination of Costco and T-Mobile rebates, instead, it is a single $300 or $400 virtual prepaid card from T-Mobile when you port your number over from the competition.

The Essentials plan ($100 plus taxes) will give you $300 per line. The 4-line plan for $170 will give you $400 per line for up to 4 lines, that is essentially 8 to 9 months of free service. And if you are able to snag an Insider Discount, it's an even better deal.

This deal also also stacks with the Keep & Switch promo. This is T-Mobile's standard switching promo that offers up to $800 back via rebate card to offset paying off your existing phone from your previous carrier.
​
This promo came last night, and as of right now, it seems Costco is still running its separate promotion. I am not sure if someone can get this T-Mobile promotion plus the $250 of the costco cash card, which would have made this deal a killer deal, but as of right now, it is not the case.

https://www.t-mobile.com/cell-pho...F83A546511

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50 Comments

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May 7, 2026 7:05 PM
1.2K Comments
Joined Jan 2006
4dealsMay 7, 2026 7:05 PM
1.2K Comments
I don't see the $400 prepaid offer when I click on the link, is this in-store only ?
May 7, 2026 9:08 PM
142 Comments
Joined Sep 2021
SmartHill5061May 7, 2026 9:08 PM
142 Comments
Quote from msp3 :
Will activating the BYOD line at Costco cause you to be denied for "invalid sales channel"? I got this denial recently from AT&T/AA for an in-store activation instead of an online one
Its strong YMMV, I've seen its said to be confirmed on Reddit, but i really havent seen one saying they got both deal yet. However, on the promotions page, all three will shown out as your elligible.
May 8, 2026 2:46 AM
171 Comments
Joined Nov 2007
disenchantedMay 8, 2026 2:46 AM
171 Comments
Quote from techie333 :
You will never get the gift card. 5 months after the Internet rebate card, I'm still waiting and wasted countless calls following up
Use T-Force as they are the only ones who can get a damn thing done there.
1
1
May 9, 2026 3:52 AM
7 Comments
Joined Aug 2022
Phnx83May 9, 2026 3:52 AM
7 Comments
Quote from DanielU3743 :
The switching program with T-Mobile is kinda cracked and I'm currently taking advantage with a single line but for a 4 line accounts, it's crazy. You can finance the newest nicest phone you want with any carrier, wait 90 days and then T-mobile will give you $800 to switch, for EACH PHONE, with no requirement to stay. You can get an $800 discount on any phone after 90 days with another carrier and then own it outright. I am currently switching from ATT with a Pixel 10 Pro XL, getting $800 and immediately switching to Mint. You can do this once every 2 years
90 days with previous carrier or T-mobile?
May 9, 2026 11:14 AM
92 Comments
Joined Sep 2018
DanielU3743May 9, 2026 11:14 AM
92 Comments
Quote from Phnx83 :
90 days with previous carrier or T-mobile?
Previous carrier
May 10, 2026 5:41 AM
7 Comments
Joined Aug 2022
Phnx83May 10, 2026 5:41 AM
7 Comments
Quote from DanielU3743 :
Previous carrier
Let's say I'm planning to switch from Verizon (I've been with them for 90+ days) to T-Mobile, with two devices and a remaining balance of $1,600. Should I pay off the devices with Verizon first, or can I wait until T-Mobile sends the prepaid Mastercards and then use those to pay off the devices?
May 10, 2026 10:21 AM
92 Comments
Joined Sep 2018
DanielU3743May 10, 2026 10:21 AM
92 Comments
Quote from Phnx83 :
Let's say I'm planning to switch from Verizon (I've been with them for 90+ days) to T-Mobile, with two devices and a remaining balance of $1,600. Should I pay off the devices with Verizon first, or can I wait until T-Mobile sends the prepaid Mastercards and then use those to pay off the devices?
You have to pay them off first, wait for them to unlock, switch, submit reimbursement and wait to get your money. I just got my $800 yesterday and immediately transferred it to my back and I'm in the process of switching out. I paid off my phone 10 days ago with ATT. YMMV on how long the reimbursement takes. They claim it takes upwards of 15 days after submission

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May 10, 2026 1:57 PM
692 Comments
Joined Nov 2015
r2mboMay 10, 2026 1:57 PM
692 Comments
Quote from DanielU3743 :
You have to pay them off first, wait for them to unlock, switch, submit reimbursement and wait to get your money. I just got my $800 yesterday and immediately transferred it to my back and I'm in the process of switching out. I paid off my phone 10 days ago with ATT. YMMV on how long the reimbursement takes. They claim it takes upwards of 15 days after submission
Is there any current promotion in Verizon to start with? Don't see they are aggressive these days
May 10, 2026 4:42 PM
7 Comments
Joined Aug 2022
Phnx83May 10, 2026 4:42 PM
7 Comments
Quote from DanielU3743 :
You have to pay them off first, wait for them to unlock, switch, submit reimbursement and wait to get your money. I just got my $800 yesterday and immediately transferred it to my back and I'm in the process of switching out. I paid off my phone 10 days ago with ATT. YMMV on how long the reimbursement takes. They claim it takes upwards of 15 days after submission
Great. So, I need to pay for at least one month of service with T-Mobile before leaving, right?
May 10, 2026 4:52 PM
92 Comments
Joined Sep 2018
DanielU3743May 10, 2026 4:52 PM
92 Comments
Quote from Phnx83 :
Great. So, I need to pay for at least one month of service with T-Mobile before leaving, right?
Nope, as soon as you get the money, you can port out.
May 11, 2026 2:29 AM
7 Comments
Joined Aug 2022
Phnx83May 11, 2026 2:29 AM
7 Comments
Quote from DanielU3743 :
Nope, as soon as you get the money, you can port out.
Sounds great. Thanks!
May 13, 2026 12:03 PM
3.2K Comments
Joined Oct 2007
KingUltraMay 13, 2026 12:03 PM
3.2K Comments
Quote from Phnx83 :
Let's say I'm planning to switch from Verizon (I've been with them for 90+ days) to T-Mobile, with two devices and a remaining balance of $1,600. Should I pay off the devices with Verizon first, or can I wait until T-Mobile sends the prepaid Mastercards and then use those to pay off the devices?
If your Verizon account is older than Jan 27,2026, then your devices should be Unlocked by now and you don't have to pay them off first. If you port out, Verizon will send you a final Bill.
May 15, 2026 12:11 AM
3K Comments
Joined Sep 2014
msp3May 15, 2026 12:11 AM
3K Comments
Quote from SmartHill5061 :
Its strong YMMV, I've seen its said to be confirmed on Reddit, but i really havent seen one saying they got both deal yet. However, on the promotions page, all three will shown out as your elligible.
I went through what was posted on leddit, apparently a Costco manager (and in separate thread T-Mobile kiosk manager) posted and confirmed it officially works, but only if you use code COSTCOBYOD as opposed to the normal BYODREBATE: https://old.reddit.com/r/tmobile/...nd_costco/

All T-Mobile website, store, and dealer sales channels use BYODREBATE and Costco warehouse kiosks use COSTCOBYOD, but it's unclear what happens if you do it via Costco online (which links you to a Costco branded T-Mobile website). The difference is BYODREBATE is $400 prepaid gift card and has shorter processing times, whereas COSTCOBYOD is $250 in prepaid gift card and $150 in Costco cash card (in addition to $75 per line in Costco cash card that you don't need to submit a rebate for) with longer wait times to accommodate Costco's long return period.
May 27, 2026 1:30 PM
2.2K Comments
Joined Nov 2018
dealUnlockedMay 27, 2026 1:30 PM
2.2K Comments
Quote from msp3 :
I went through what was posted on leddit, apparently a Costco manager (and in separate thread T-Mobile kiosk manager) posted and confirmed it officially works, but only if you use code COSTCOBYOD as opposed to the normal BYODREBATE: https://old.reddit.com/r/tmobile/...nd_costco/All T-Mobile website, store, and dealer sales channels use BYODREBATE and Costco warehouse kiosks use COSTCOBYOD, but it's unclear what happens if you do it via Costco online (which links you to a Costco branded T-Mobile website). The difference is BYODREBATE is $400 prepaid gift card and has shorter processing times, whereas COSTCOBYOD is $250 in prepaid gift card and $150 in Costco cash card (in addition to $75 per line in Costco cash card that you don't need to submit a rebate for) with longer wait times to accommodate Costco's long return period.
Do you recommend doing this at T-Mobile store instead of Costco to get $800 (Keep & Switch) and $400 (BYOD)?

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May 30, 2026 10:33 AM
3K Comments
Joined Sep 2014
msp3May 30, 2026 10:33 AM
3K Comments
Quote from dealUnlocked :
Do you recommend doing this at T-Mobile store instead of Costco to get $800 (Keep & Switch) and $400 (BYOD)?
I did both at Costco online (this is now possible), if you need any hand-holding (or want an Insider discount) I recommend in-warehouse at the kiosk. I don't trust the carrier store itself and don't mind part of the $400 coming in the form of Costco Shop cards

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