How Do I Top Up Credit on O2 Germany?
You can top up credit on O2 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 O2 in and cheap, fast and secure way.
To check your account balance: Dial *101#
To check validity: Dial *102#