You can top up credit on T Mobile by using Thai Bank Transfer, Visa, Mastercard, JCB, Alipay, Cryptocurrency or your Coins.ph wallet. Easily bookmark your payments here: mobiletopup.com/topup/germany Reload any pre-paid phone on the T Mobile in and cheap, fast and secure way. To check your own number: Dial *135# To check your account balance: Dial *100#