How to Make a BMO Customer Service Complaint

Resolve Your BMO Banking Issues Quickly

Olesya Krasavtseva
Fact-checked by Olesya Krasavtseva
Content Editor at Prostobank Consulting Prostobank Consulting Logo
Updated: 01.11.2026
Table of Contents

Understanding the BMO Complaint Process

Dealing with banking issues can be frustrating, but the Bank of Montreal (BMO) has a structured complaint resolution process to help you find a fair solution. Whether you are disputing an unexpected fee, reporting poor customer service, or addressing a complex account error, knowing the correct escalation path is crucial for a timely resolution.

To ensure your voice is heard, it is important to follow BMO's official steps rather than skipping directly to executive management. Start by gathering all relevant documentation, such as account statements, transaction dates, and past reference numbers, before you initiate contact with the bank.

BMO Complaint Contact Information

Category Details
Step 1: First Contact Local Branch Manager or BMO Virtual Connect
Step 2: Escalation Senior Officer or Resolution Office
Step 3: Customer Complaint Appeal Office (CCAO) Email: [email protected]
Step 4: External Review Ombudsman for Banking Services and Investments (OBSI)

Step-by-Step Guide to Filing a Complaint

Follow this exact sequence to ensure your issue is properly recorded and escalated within BMO's customer service systems:

  • Step 1: Log into BMO Online Banking or the BMO mobile app to review your account details and secure any necessary evidence (like transaction screenshots).
  • Step 2: Contact the first point of resolution. You can send a message via the secure portal, call the number on the back of your debit/credit card, or speak directly to your local branch manager.
  • Step 3: If your issue is unresolved after 14 days, request that your complaint be escalated to a Senior Officer. Always ask the representative to provide you with a formal complaint reference number.
  • Step 4: If you remain dissatisfied with the Senior Officer's resolution, submit a written appeal to the Customer Complaint Appeal Office (CCAO) at [email protected] using your reference number and all supporting documents.

Troubleshooting Common Access Issues

If you are attempting to log in to access account statements or submit a secure complaint, you might run into these common digital banking pain points:

  • Locked ID: If you enter the wrong password too many times, your account will be locked for security. Click the Forgot Password link and answer your pre-set security questions to reset your credentials.
  • MFA Delays: If you aren't receiving your Multi-Factor Authentication (MFA) code via text message, check your carrier's spam settings or select the Call Me option to receive an automated voice code.
  • Browser Errors: Clearing your cache or switching to an Incognito/Private window can resolve looping login screens or timeout errors when trying to access the BMO secure message centre.

Pro-Tip: To speed up the resolution process, bypass standard public email addresses and use the Secure Message feature directly inside your authenticated BMO Online Banking portal. This automatically verifies your identity and attaches your specific account details to the complaint ticket, cutting down on back-and-forth communication.

Frequently Asked Questions

How long does BMO take to resolve a complaint?

BMO aims to resolve most initial customer service complaints at the first point of contact or at the Senior Officer level within 14 days. If escalated to the Customer Complaint Appeal Office (CCAO), the entire internal process can take up to 56 days.

What if I am not satisfied with the CCAO's decision?

If you are unhappy with the final written decision from BMO's Customer Complaint Appeal Office, or if 56 days have passed since you submitted your initial complaint without a resolution, you have the right to escalate your case to the Ombudsman for Banking Services and Investments (OBSI) for a free, independent review.

Official Bank Information

Bank Of Montreal

Support: 877-225-5266

SWIFT Code: BOFMCAM2

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