Complaint Letter to Bank for Unfair Charges

Unexpected fees, duplicate charges, or service fees you were never told about - banks are not infallible. When phone calls to customer service have not resolved the issue, a formal written complaint creates the documentation you need and signals that you are prepared to escalate.

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Why a Formal Letter Works

  • Dated documentation - Creates an official record of your complaint
  • Structured and clear - Shows you have organized your case professionally
  • Deadline-based - Sets a specific timeframe for the bank to respond
  • Escalation-ready - OBSI and FCAC require documentation of your attempts to resolve directly
  • Paper trail - Evidence if you need to take further action

Banks have internal complaint processes they must follow. A formal letter triggers that process and creates accountability.

Example Snippet

Preview only - not a complete template

"I am writing to formally dispute charges on my account ending in [XXXX]. On [date], I was charged $[amount] for [fee description]. I believe this charge is unfair because [reason - e.g., I was not informed of this fee, the fee contradicts what I was told when opening the account].

I am requesting a full refund of $[amount] and ask that you respond within 14 business days..."

What to Do Next If Ignored

  • Wait for your deadline - Give the bank the full 14 business days you specified
  • Send a follow-up - Reference your original letter if no response (see: Second Complaint Letter)
  • Escalate to OBSI - If unresolved after 90 days, or if you receive an unsatisfactory final response
  • File with FCAC - The Financial Consumer Agency of Canada handles complaints about banks violating consumer protection rules

General guidance only. This is not legal or financial advice.

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