A friend who's also using public mobile just lost their service, they can't make or receive calls, and we suspect it's because their credit card expired so payment stopped working.
They can't login to their account to verify if payment is indeed the issue because login requires a verification code sent to their phone, yet they've lost their service so they can't receive the code. They don't see an option to send the verification code to their email instead, it's only to their phone number.
Since they can't login, they can't post here for help either, what can they do at this point?
