How to complain to mBank.
- Type
- Bank
- Region
- Poland
- Escalate to
- Rzecznik Finansowy (Financial Ombudsman of Poland)
- Response deadline
- mBank must answer within 30 calendar days of receiving the complaint, with an extension to a maximum of 60 days only in particularly complicated cases (with reasons given). Unsatisfied retail customers can escalate to the Rzecznik Finansowy.
Details checked 2026-06-02
You can submit a complaint through the mBank app or online banking, by phone, in writing or in person. If the deadline is missed the complaint is treated as accepted. Consumer rights matters can also be raised with UOKiK.
Complain to mBank first and ask for a written final response. If they reject you or the deadline passes, you can take it to the Rzecznik Finansowy (Financial Ombudsman of Poland) for free, and their decision is binding on the company.
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Write my mBank complaintDetails compiled for convenience. Always confirm the current contact on mBank's own site. A self-serve tool, not a law firm. Not legal advice.