How Do I Top Up Credit on Oi Brazil?
You can top up credit on Oi by using Thai Bank Transfer, Visa, Mastercard, JCB, Alipay, Cryptocurrency or your Coins.ph wallet. Easily bookmark your payments here: mobiletopup.com/topup/brazil
Reload any pre-paid phone on the Oi in and cheap, fast and secure way.
To check your sim balance: Dial *8000