Guaranty Trust Bank also known as GTBank or GTB is one of the biggest banks in Nigeria. They are so big that their branches in major cities across Nigeria are renowned for long queues. Founded in 1988 by a group of 35 enterprising Nigerians, the bank now has over 230 branches nationwide and up 10 subsidiaries around the world.
How To BUY GTBank AIRTIME OR DATA
To buy airtime for your phone number that is registered with GTB, just dial *737*amount#.
To buy airtime for your other phone number or for someone else, just dial *737*Amount*Recipient’s number#.
If you want to buy data for yourself or others, dial *737*4#.