The card can be used anywhere Mastercard is accepted, but it generally expires in 6 months, so don't sit on it. Is There a Catch? Switch to T-Mobile from Verizon or AT&T & Bring Your Phone
If your current phone is locked or you're ready for an upgrade, this program helps pay off your old contract when you trade in your device for a new one from T-Mobile.
Your account with the previous carrier must have been in good standing for at least 90 days before switching.
This is for people who love their current phone but hate their current carrier. T-Mobile will reimburse your remaining device balance so you can bring that phone to their network. Your remaining phone payment balance. Max Benefit: Up to $800 per line (max 4 lines).
You typically receive the virtual card via text message within 15 days of your submission being approved.