How to Instantly Block ATM Card if Stolen, Lost or Irregular Activity on Bank Account

Cyberattacks on banks happen all too commonly. Thankfully, most banks are well protected against hackers, and the threat of a cyber-attack shouldn’t deter you from using a financial institution.

If you suspect any fraudulent activity or you lost your ATM Card, there is a means for you to instantly block your ATM card, leading to denied transactions.


We have gathered the easiest way on how you can block any ATM Card in Nigeria if stolen, lost or Notice Fraudulent Activities on your Account, this can secure you from losing your hard-earned.

Regardless of the bank, you are using, this post will be handy for you in cases of emergency relating to ATM card misplacement. Below are the detail on how to block major ATM Cards in Nigeria.

How to Block GTBank Card through USSD Method

Simply dial *737*51*10# on your mobile device. Make sure your phone number is associated with your GTBank account.

How to Block GTB ATM Card through Internet Banking/App

Log on to your internet banking profile and block your ATM yourself using the steps below.
  1. Login to your GTBank internet/app.
  2. Locate where there is a card and click on it.
  3. Select ‘Hotlist’ and insert your card number, request reason and so on.
  4. Click submits and waits.
  5. A Pop-up screen option will appear asking you to confirm the deactivation of your ATM card.

How to Block your UBA (United Bank Of Africa) ATM Card with USSD Code

To block your lost or stolen UBA ATM/Debit Card, simply dial *919*10# from your mobile line that is registered with the UBA Bank account.

Alternatively, follow the steps below using and follow the prompt command
  1. Dial *919#
  2. Select “7” for next
  3. Select Banking services
  4. Select “1” to block debit card
  5. Enter your account number and send it, then you are done.
You can block your UBA ATM card through the internet banking/App platform too.
  1. Just log on to the UBA internet banking platform
  2. Select self-service
  3. Request to block your card
Alternatively, you can contact the UBA help desk through +2347002255822 or send them an email [email protected]

How to Block Access Bank ATM Card

Access bank does not require your code or sending SMS messages, Simply do the following.
  • For lost of your debit card dial 18005548969
  • For lost of your credit 18005583424
You are done with this; your card will be deactivated instantly 

How to Block First Bank ATM Card With USSD Code

To block your Firstimply use your phone and ensure that the SIM card on the phone is registered with your First Bank account.
  1. Send “BLOCK” to 30012. 
  2. Within 24 hours your ATM card will be blocked and it can’t be used to withdraw or make a payment again.
Now you need to visit any First Bank branch and apply for a new ATM card.

How to Block Fidelity Bank ATM Card with USSD Code

To block Fidelity bank card, Simply dial *770*911# on your registered phone number connected to the account and follow the prompts.

A list of your entire ATM card connected to the account will be displayed and you will be asked to select the particular one you will like to block.

Also, you may wish to contact the Fidelity Bank to block your ATM card via email at [email protected], [email protected]

How to Block Zenith Bank ATM Card with USSD Code

  1. Simply dial *966*911# from any Mobile device
  2. Enter your account number followed by your Mobile number
  3. Press 1 to confirm your request and instantly block your account.
To block your Zenith Bank ATM card through your App/internet
  1. Log in to the app
  2. Click on the menu bar and select Cards and
  3. Deactivate Card under Type and enter a reason.
  4. Now click on continue.For further assistance, contact Zenith help desk via phone call using the following numbers 012787000, 014647000 and 012927000.

How to Block Stanbic IBTC Bank ATM Card with USSD Code

  1. Simply dial the code *909#
  2. Select my bank
  3. Select service request
  4. Click on the card.
Alternatively, you can do this by sending SMS to the Stanbic IBTC bank. Send Block card NUBAN to 30909 via your registered mobile number. Replaced the NUBAN with the 10-digits of your account number Link the card.

How to Block Union Bank ATM Card with USSD Code

To block your Union simply text BLOCK CARD NUBAN via SMS to 20123 using the phone number registered to your account. You should replace the NUBAN with the 10-digit of your account number.

How to Block Keystone Bank ATM Card

Keystone bank does not require sending codes or internet app usage.

To block your Keystone Bank Card kindly send them an email through their email id: [email protected] or call them on +234 700 2000 3000.

How to Block Wema Bank ATM Card

blocked via the Wema Mobile app or Wema Internet banking solution.

The lost card can easily be deactivated through text messages. Just send CARD ATM OFF to 33352 using your registered mobile number with the Wema Bank account.

How to Block Sterling Bank ATM Card

For you to block your Sterling Bank Card, simply contact them via email at [email protected] or call them 070078375464.

Also, you can contact them via their social media handles below.
  • Facebook: www.facebook.com/SterlingBankNigeria/
  • Twitter: www.twitter.com/sterling_bankng
  • Instagram: www.instagram.com/sterlingbank

How to Block ECOBANK Card

To block EcoBank Card, simply follow the steps below.

Send “STOP ATM NUBAN NUMBER” to 08063262265, replace NUBAN with your account number.
  • For example: “STOP ATM 1020415263” to 08063262265.

How to Block FCMB Card

FCMB does not require sending code, simply call them on +234 2798800 or Email them [email protected] requesting that your ATM Card account should be blocked after the provision of relevant information.

How to Block Unity Bank ATM Card

If you suspect any fraudulent activity or you lost your Unity Bank ATM Card, you can request them to instantly block your card through a phone call on +2347080666000, +2347057323226, +2347057323227

or you can email Unity Bank with [email protected] or visit their official website www.unitybankng.com.
How to Instantly Block ATM Card if Stolen, Lost or Irregular Activity on Bank Account How to Instantly Block ATM Card if Stolen, Lost or Irregular Activity on Bank Account Reviewed by Rapheal Chukwumah on December 17, 2019 Rating: 5

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