Do you misplace your airtime card? This happens to me all the time, I keep looking for my airtime especially the paper printed voucher which you think you have topped up but later you find it in the bin.
With GT One click mobile airtime top-up, you don’t need to go through that stress, you just top-up your mobile phone by simply using the code below:
It works by dialling *737*AMOUNT# using the mobile phone you’ve already registered with GTBank.
E.g: Dial *737*500# if you want to load an airtime credit of N500 to your phone.
I’m loving it.