How to Block Zenith Bank and Fidelity Bank ATM card /Bank account

Last Updated on October 8, 2025 by admin

Customers of Zenith and Fidelity Bank are also vulnerable to ATM card fraud and theft, especially with the rise of internet and mobile banking in Nigeria.

If you receive an alert about unauthorized transactions from your bank, it’s a clear sign that your hard-earned savings may be at risk, and recovering those funds can often be difficult.

Over the years, banks have consistently warned customers against sharing their account details with unsolicited callers, stating that they will never reach out via phone, SMS, or email to request your card details, PIN, token codes, or any other account-related information.

ALso read: How to register for Zenith Bank Internet banking and Mobile app

Many fraudsters may pose as bank representatives, asking for your bank verification number (BVN), date of birth, and requesting you to confirm these details.

They might then ask for your debit card information and ATM PIN. It’s crucial that you never share your personal information over the phone, email, or SMS, as you could be dealing with a scammer.

You can also read: Zenith bank Forex: How to receive Foreign Currency Inward Transfers from abroad

If you do make such a mistake or receive an unauthorized debit alert, it’s important to quickly block your bank account and ATM card to prevent any further withdrawals.

The good news is that customers can take action on their own without needing to visit a branch. Both Zenith Bank and Fidelity Bank have introduced unique codes to help stop unauthorized transactions and protect account holders’ funds in case of lost mobile phones, ATM cards, or hardware tokens, as well as compromised account details.

Blocking your ATM card or bank account may arise from several critical reasons that warrant immediate attention to safeguard your finances.

One primary reason is the potential for unauthorized transactions, which can occur if your card or account details are compromised through scams, phishing, or card skimming.

Detecting unusual activity on your account should prompt swift action to prevent further unauthorized access.

How to Block Zenith bank/ATM CARD

To block your Zenith Bank ATM card, you have several options:

Using the USSD Code:

  1. Dial *966*911#
  2. Follow the on-screen prompts to block your card.
  3.  Confirm your details to block the card immediately.

Using the Zenith Bank Mobile App:

  1.  Launch the Zenith Bank Mobile App on your smartphone.
  2. Click on the Menu icon at the top left corner.
  3.  Choose ‘Cards & Cheques’ from the options.
  4.  Toggle the switch to deactivate your ATM card.

Via Customer Care:

  1. Call  234 (1) 4647000 or 0700-286-936484.
  2. Explain your situation and request to block your card

You can also read: How to apply for Fidelity Bank fast loan and Salary in advance/Payday Loan

How can I block Fidelity bank ATM card in the event of card fraud?

  • To block your Fidelity Bank ATM card in the event of card fraud, you have several options:Using the USSD Code:
    1. Dial* 770*911#.
    2. Follow the on-screen prompts to block your card.
    3. Confirm your request by entering your unique 4-digit PIN.

    Using the Fidelity Bank Mobile App:

    1.  Launch the Fidelity Bank Mobile App on your smartphone.
    2.  Use your username and PIN to log in.
    3. Go to the ‘Card Services’ section from the menu.
    4. Choose the option to block your ATM card.
    5. Follow the on-screen instructions to complete the process.

    Via Customer Care:

    1. Call Customer Care +234 1 271 6600 or +234 700 343 354 89.
    2. Provide your personal details (account number, phone number, etc.) to verify your identity.
    3.  Request to block your ATM card.
    4.  The bank representative will send you an SMS or email confirming that your card has been blocked.


What To Do After Blocking Your Card/Account

After blocking your Zenith Bank or Fidelity Bank ATM card or account, you’ll need to take several follow-up actions to ensure financial security and continuity of banking services.

First, promptly report the incident to the bank by visiting a branch or contacting their customer service. This allows the bank to investigate any unauthorized transactions and provide guidance on further steps. Make sure to request a new ATM card.

If you’ve blocked your Zenith Bank or Fidelity Bank ATM card or account, the next steps depend on why you blocked it — for example, due to loss, theft, fraud, or security reasons.

Here’s what to do next for each bank:

ZENITH BANK

1. Confirm the Block

  • If you blocked your card via USSD (*966*911#), mobile app, or internet banking, it’s usually instant.

  • You can confirm by calling Zenith Bank Customer Care:

2. Request a Replacement Card

  • Visit any Zenith Bank branch with a valid ID (NIN slip, driver’s license, international passport, or voter’s card).

  • Request a new debit card and link it to your existing account.

  • A replacement fee may apply (₦1,000–₦1,500 typically).

3. Change Your Passwords/PINs

  • Change your internet banking password, mobile app PIN, and USSD PIN for extra security.

  • If you suspect your account details were compromised, also update your email password (if linked to your bank alerts).

4. Monitor Account Activity

  • Regularly check your transaction alerts or use the Zenith Bank app to monitor unauthorized activity.

  • Report any suspicious debit immediately.

FIDELITY BANK

1. Confirm the Block

  • If blocked using USSD (770911#), the account or card is instantly frozen.

  • You can confirm by calling Fidelity Bank Customer Care:

2. Visit a Branch for Card Reissue

  • Go to any Fidelity Bank branch with a valid ID.

  • Request a new ATM card and reactivate your account if it was frozen.

  • Pay the reissue fee and link the card to your account.

3. Update Security Details

  • Change all PINs, passwords, and security questions.

  • Set up two-factor authentication where possible on the Fidelity mobile app.

4. Monitor Your Account

  • Review your transaction alerts and bank statements.

  • If you see unauthorized debits, file a dispute report immediately at the branch or through the Fidelity Bank app.

General Tips

  • Always keep your new card and PIN secure.

  • Do not share your OTPs or banking details with anyone, even if they claim to be from the bank.

  • If your phone was stolen, block your SIM and retrieve a new one before resetting mobile banking.

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About admin

Meet Ogbeide Frank, also known as Perere, a blogger passionate about finance and technology. He studied Business Administration at Ambrose Alli University in Ekpoma and Mobile Communication at Orange College in Malaysia. Frank has experience working as a banker and consultant for various agencies in Nigeria. For advertisement, content marketing, and sponsored posts, you can reach him at kokobest04@gmail.com.
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