Can I add on roaming after leaving Canada and am in the US
Go to Solution.
Yes but you’ll need to use wifi to access the website and your account.
@Lappy yes, you can
Roaming addon 15 days countdown start from the moment the purchase completed successfully
Once purchase, reboot the phone once and make sure the phone connects to T-Mobile
@Lappy Yes just sign into self serve go to plan add. On and pick the roaming option you like and reboot phone