GTBANK 737 banking service just got more secure, you can now securely complete your *737# transactions with secure 4-digit PIN. Hence, you no longer have to be scared of anyone trying to buy airtime, transfer money etc when the person have access to your phone and GTBank ATM card.
To secure your 737 transactions, you will have to create your pin which will be required to complete your banking transactions when you use the GTB *737# code.
How To Create GTBank *737* Security PIN For Transfer
you can still carry out the gtbank cardless withdrawal option without ATM card by checking out my previous write up