I've bought a SIM Card by mail to use in USA in July, during my trip. I live in Brazil.
I've activated it by AT&T site but a password was sent via SMS to the phone number supplied during the registration. Of course I cannot have access to it because the phone has no signal here (and also because I could not add some money to it).
I must to add money to it within 26 days or my account will be desactivated but to do it I need this password.
Does anybody know how to proceed, please? Or may I in July, when arriving, even after the expiration period, proceed a new registration with this SIM Card or it will be easy to buy a new one?