Preventing Unauthorized Usage: How to Block GTBank Account Using a Different Mobile Device

Guardian Trust Bank (GTBank) is a reputable financial institution that serves millions of customers worldwide. However, there may be circumstances when you need to block your GTBank account temporarily or permanently.

This could be due to reasons like suspected fraudulent activity, lost or stolen cards, or simply a need to secure your account. In this comprehensive guide, we will walk you through the steps to block your GTBank account effectively and ensure the safety of your funds.

Please Note that blocking your GTBank account is a serious decision and should only be done after careful consideration. Before proceeding, it is advisable to contact GTBank’s customer service or visit your nearest branch to discuss your concerns and explore alternative solutions.

Understand the Need to Block Your GTBank Account

Blocking your GTBank account can have serious implications, so it is crucial to evaluate the situation carefully. Reasons for blocking an account can include suspected fraudulent activity, lost or stolen cards, identity theft, or unauthorized transactions.

It is therefore important to gather all the necessary evidence or documentation related to your concern before proceeding with the account-blocking process.

Various Ways to Block GTBank Account

In that respect, in this article, we will guide you through some of the simple processes or steps you could adopt to block your GTBank account before visiting any branch of your bank. How to block a GTB account online, with code & from another phone

Block Your GTB Account Using USSD Code

To lock your account if you believe your GTB account has been compromised, simply use any phone and dial *737*51*74# from any Nigerian. There is NO COST for this service.

When you choose to lock or block your GTB account, all transfer or debit transactions on the account will be restricted, ensuring that no one can send money from that account.

To regain access and unlock your GTB Account, you have two options:

====> Call GTConnect or GTBank Contact Care Centre.

====> Visit any GTB branch in close proximity to you.

How to Block GTB Account Online

Using the Internet banking system provided by GTBank, you can block your GTB account online. Additionally, you can use it to disable your ATM cards. Here are the steps to follow in order to block your GTB account:

Step 1 ====> Visit the internet banking site for GTBank.

Step 2 ====> Use your User-ID, Account Number, Phone Number, Email, and Password to log in.

Step 3 ====> A self-service option should be chosen.

Step 4 ====> Then, to deactivate your GTB account, click the Account Switch off/on Option.

Step 5 ====> Next, select the “Date from” and “Date to” for the Account block’s duration.

Step 6 ====> Then enter the response to your secret question

Step 7 ====> Tap the “Submit” button.

Step 8 ====> Finally, approve the request to block the account.

How to Block GTBank Account Using Mobile App

By utilizing the GTBank mobile app, you can block your GTB account by doing the following actions:

Step 1 ====> Download and install the GTBank mobile app on your phone if you haven’t already.

Step 2 ====> Use the mobile app to sign in and select the account option.

Step 3 ====> To access the account hotlist request, scroll below.

Step 4 ====> You can block an account number by choosing it.

Step 5 ====> Type a justification for hotlisting the account here.

Step 6 ====> Enter the secret answer for your Account and the password or token

Step 7 ====> Then click Continue and Submit.

How to Block GTB Account Using Code

With USSD Code, you can disable your GTB account by:

Step 1 ====> Dial *737*51*74# on phone

Step 2 ====> You will then need to enter your 737 PIN and the phone number associated with your GTB account.

Step 3 ====> Once the information is provided, your GTB account will be suspended.

Step 4 ====> You won’t be able to make any transfers or debit transactions on your GTB account.

How to Block GTB ATM Card

To block your GTB ATM Card if it has been lost or stolen, simply phone *737*51*74# from any Nigerian mobile number. There is NO COST for this service.

Once your GTB ATM Card has been locked or blocked, you won’t be able to make any transfers or debit purchases with it. Nobody will therefore be able to send, transfer, or withdraw money from that account.

How to Unblock GTBank Account with Code 737

Follow these steps to unblock your GTbank account with 737:

Step 1 ====> With the phone number associated with your GTB Account account, dial *737*11#.

Step 2 ====> Next, you will be required to enter your BVN.

Step 3 ====> The NGN100 (reactivation charge) will then be deducted from your GTB account if you choose to proceed by clicking on 1.

Additionally, you can unlock your account by contacting GTConnect, GTBank Customer Care, or a local GTBank location.

Gather Essential Information

Before contacting GTBank, It is important to have the following essential information at hand:

Account Details: Collect your account number, customer ID, and any other relevant information related to your GTBank account. This will help the customer service representative identify your account quickly and provide appropriate assistance.

Supporting documentation: Prepare any supporting documentation that strengthens your case for blocking the account. For instance, if you suspect fraudulent activity, collect evidence such as suspicious transactions, emails, or messages.

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Alternative Measures: Freezing vs. Closing Your Account

Depending on your situation, you may have the option to freeze or close your GTBank account instead of blocking it.

Freezing temporarily suspends account activity, while closing permanently terminates your relationship with the bank.

Carefully evaluate the consequences of each option and consult with GTBank representatives to make an informed decision.


Blocking your GTBank account is a serious step that should only be taken when absolutely necessary. It is essential to gather all the required information, communicate effectively with GTBank’s customer service, and consider alternative measures. Remember to secure your account and stay vigilant throughout the process.

While this guide provides general steps to block a GTBank account, it’s important to note that the specific procedures and requirements may vary based on GTBank’s policies and your location.

Always consult GTBank’s official website or contact their customer service for the most up-to-date and accurate information regarding account blocking.

By following the steps outlined in this guide and seeking appropriate assistance, you can ensure the safety and security of your GTBank account.

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