How to Block Your Guaranty Trust Bank Using Self-service Options

Update on how to use Guaranty Trust Bank self-service options to protect your account

Our Self-service options are always available to you:

  • To block your account, dial *737*51*74# from any mobile number in Nigeria and follow the service prompts.
  • To block your card, dial *737*51*10# from your registered phone number or log in to Internet Banking, GTWorld, or GTMobile, go to ‘Cards’ and select ‘Hotlist your card.’
  • To report dispense error, go to GTBank website ( >> Help Center>> Dispense Error.
  •  For other complaints and enquiries, please go to GTBank website >> Help Center >> Complaints & Enquiries.






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