T - Mobile offers the latest in mobile phone technology including Mobile Entertainment Downloads. Pay a bill or top up on t - mobile. Treat someone to a top up. How to pay by phone, online banking or text · Set up or amend payments by. You can refill your Pay in Advance (Prepaid) account through My T - Mobile. Or we can show you how to refill your account. We'll show you all the ways you can pay your T - Mobile bill. Or, you can take a shortcut to online payments by clicking the button below. Pay your bill. We'll show you all the ways you can pay your T-Mobile. Sufficient balance required to use service. Taxes and fees additional. Can I use my iPhone on T-Mobile's network? Pay your T-Mobile .