Want to update your personal information without visiting the Bank? Follow these easy steps to get started; — Visit www.gtbank.com — Log on to the GTBank internet banking platform — Click self-service on the menu (Left) — Select “Customer Information update” — Click “New Request” — Then, select the “account number" and "update type” For example, If you want to update your mobile number, select “Mobile Number " as the update type. — Enter your new mobile number — Answer your secret question And y