Nowadays Nigerian banks are just making life easier in term of easy access to airtime for our daily life partner (mobile phones). At first time mobile phones comes to Nigeria every mobile user must go and look for recharge card buy it scratch it and then load it.
Later banks introduces ATM airtime recharge for every one that owns ATM card for any bank the banks re think and make it even more easier and introduce internet banking where customer can log into his internet banking account and make transactions to load airtime. Then as time goes on they comes again and even make it easier for any mobile user to purchase airtime without internet connectivity using USSD code.
For someone to purchase airtime using this method User must have a fidelity bank account and must link his number to his account and there must be sufficient fund in the account and then dial *770*amount# for example *770*1000# for N1,000 naira airtime.
Note: Customer can only load N5,000 naira per day ( I think this is to protect customers for their accounts to be safe) for example if someone knows your Airtime share pin might not share more than that before you know. And all the transactions are free but know that Nigerian banks and deducting 4 naira per SMS they sent to you make sure if you want recharge use it wisely. Did you hear about GT Bank instant USSD recharge and recharge for family and friend? Check it out.