How to Block Gtbank and Zenith BankAccount/ ATM Card

Last updated on March 27th, 2025 at 11:12 am

Are you among the millions Nigerians searching for how to block their Guaranty Trust bank popularly known as Gtbank ATM card or bank account and Zenith bank whenever you feel your account has be compromise, card missing nor your Mobile phone that is link to bank has been stolen.

If yes, this post is designed to provide solution’s to your request, we shall take a look at how to block Atm card/bank account using USSD (Unstructured Supplementary Service Data) code, mobile app and online bank without visiting the banking hall.

However, it’s good to block your ATM Debit card/bank account immediately to prevent any chances of fraudulent and unauthorized transactions on your account.Blocking your card/account will prevent you from major losses and frauds.

There are many options to block an ATM debit card/Account with Gtbank and zenith bank in Nigeria either using ussd code, mobile banking, phone call or internet banking.

When to block your account and ATM card

Blocking your account or ATM card is essential in certain situations to protect your funds and prevent unauthorized access. Here’s when you should consider it:

If your ATM card is lost or stolen, block it immediately to avoid fraudulent transactions.
If you notice suspicious or unauthorized activities in your account, blocking it can prevent further losses.
If your mobile phone (linked to your bank account) is stolen, block your account to stop anyone from accessing your funds through USSD or mobile banking.
If you suspect that your ATM PIN or account details have been exposed or hacked, blocking your card or account is a wise precaution.
If you’ve accidentally shared your bank details due to phishing scams, act quickly to block access to your account or card.

How to block Gtbank ATM card or bank account

To block your GTBank ATM card or account using a USSD code, you can follow these steps:

To block your ATM card: Dial *737*51*74# from the phone number linked to your GTBank account. Follow the prompts to complete the process. This will prevent unauthorized transactions using your card.
To block your account: Dial *737*911#. This will deactivate your account and stop all debit transactions until you unblock it.

Block Your Gtbank ATM card via Phone call

Call GT Bank’s customer care hotline at 0700-482666328 or +234-14480000 (if you’re outside Nigeria). A customer service representative will assist you with blocking your card. You will likely be asked for some personal information to verify your identity.

Both methods are quick and effective, especially in emergencies

You can also read how to block other bank ATM card in Nigeria

How to Block Zenith Bank ATM Card/Bank account

If you’re a Zenith Bank customer and need to block your ATM card or account, here are the steps:

To block your ATM card:
- Dial *966*60# from the phone number linked to your Zenith Bank account.
- Follow the prompts and select the option to block your card.
- Enter your USSD PIN to confirm the action.
To block your account:
- Dial *966*911# from your registered phone number.
- Enter your account number and follow the instructions to deactivate your account and stop all debit transactions.