All you have to do is follow the guidelines which I will be showing you below.
- Go to any shop where they sell recharge card, if could be airtel office, supper market, etc
- Buy recharge card of N1500
- Load it on the sim you intend using it to browse
- Now dial *440*16#
- Press your send” or Yes” button
- Now check your account balance and you will be given free Call credit of #7,500 in your phone sim to call all networks
- Also check your Airtel data bundle balance to see 2GB to be used for 30 days and to be used for computers and all kinds of phones.