Q: What is ABA Bank’s 24/7 customer service phone number in Cambodia?

ABA Bank’s 24/7 customer service and fraud hotline number is 023 225 333. This line is staffed around the clock including weekends and public holidays. For card fraud, suspected account compromise, or any emergency requiring an immediate card freeze, this is always the correct first call. English-speaking agents are available at all hours.

Q: How do I use ABA Bank’s live chat in the ABA Mobile app?

Open the ABA Mobile app, tap the Help icon (question mark) in the bottom navigation or top menu, then select Live Chat. Live human agents are available during business hours, typically 8am to 8pm Monday through Saturday. Outside these hours, an automated chatbot handles initial queries and routes urgent matters to the phone hotline. Response time during business hours is typically under 2 hours.

Q: What is ABA Bank’s customer service email address?

ABA Bank’s customer service email is customerservice@ababank.com. Email is the best channel when you need a written record of your communication — for example, when lodging a formal complaint about fees or submitting documentation for a dispute. Response time is typically 1 to 3 business days. Always include your account number, the specific transaction or issue reference, and a clear description of what happened and what resolution you are seeking.

Q: How many ABA Bank branches are there in Cambodia and where are the main ones?

ABA Bank operates 90+ branches and service points across Cambodia as of 2026. The main branches are at #148 Preah Sihanouk Blvd (Phnom Penh headquarters), Parkway Square, Aeon Mall Sen Sok, Olympia Mall, and major locations in Siem Reap, Sihanoukville, Battambang, Kampot, and Kampong Cham. The full branch list is available on ababank.com under the branch finder tool.

Q: Does ABA Bank offer English-language customer service?

Yes. ABA Bank offers full English-language customer service across all channels — phone hotline, in-app chat, email, branch, and Facebook Messenger. This is one of ABA Bank’s most significant advantages for Cambodia’s expat community and foreign business owners. All branch staff at major Phnom Penh locations speak English. The phone hotline also has English-speaking agents available 24 hours.

Q: How do I freeze my ABA Bank card quickly?

The fastest method is via ABA Mobile: open the app, go to Cards, select your card, and tap the freeze or block option — this takes under 30 seconds. Alternatively, call 023 225 333 and request an immediate card freeze. The in-app freeze is the fastest option if you have phone access. If you believe your card was used fraudulently, freeze it first, then call the fraud hotline to report the incident and initiate a dispute.

Q: What should I bring to an ABA Bank branch for customer service?

For any branch visit, always bring your original National ID card or passport plus a photocopy, and your ABA Bank account number or debit card. For disputes or complaints, also bring any relevant documentation — transaction receipts, screenshots, correspondence, ATM receipts. For loan applications, call ahead to confirm the specific document checklist, as requirements vary by loan type and amount.

Q: How long does ABA Bank take to resolve disputes?

Simple disputes such as failed ATM transactions or duplicate charges are typically resolved within 3 to 7 business days. More complex disputes, such as card fraud investigations requiring correspondence with Visa or Mastercard networks, can take 15 to 30 business days. ABA Bank must provide a formal complaint reference number for any dispute you submit in writing. If 15 business days pass without resolution, you may escalate to the NBC at nbc.org.kh.

Q: Can I contact ABA Bank customer service from outside Cambodia?

Yes. The phone hotline at +855 23 225 333 is reachable internationally (add country code +855 when dialing from abroad). ABA Mobile in-app chat and email work from any country. Facebook Messenger at @ABABankKH also works internationally. For expatriates or EPS workers abroad who need to manage their ABA accounts remotely, the combination of ABA Mobile app and the international phone number covers all non-branch needs effectively.

Q: What if ABA Bank does not resolve my complaint satisfactorily?

If ABA Bank fails to resolve your complaint within 15 business days or provides a resolution you consider unsatisfactory, escalate to the NBC at nbc.org.kh. The NBC’s Financial Consumer Protection Framework gives it authority to investigate complaints against any NBC-licensed bank, including ABA. Bring your ABA complaint reference number and all documentation. For the complete NBC complaint process, see the MoneyKH guide on how to dispute a bank transaction in Cambodia.