Before now, locking your bank account incase of an emergency requires you to either visit the bank to fill a form or call the customer care center and answer a series of questions, but before you complete any of this two process, there are chances your account balance has been wiped already. So gtbank has decided to introduce a new simple and straightforward procedure to lock your bank account from any phone.
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Gtbank has now added a new option to its 737 service which will allow customers remotely lock their bank account from any phone number. This is a very simple yet life saving feature as customers won't have to wait in line again to get this done.


How to lock / block your Gtbank account with *737*
> Dial *737*51*74# on any mobile number in Nigeria.
> You will be required to provide the phone number you registered with your bank account and your 737 pin.
> You bank account will be locked after that
> To unlock your gtbank account again, call gtconnect.