How to complain to Santander UK.

Type: Bank
Region: UK
Escalate to: Financial Ombudsman Service
Response deadline: 8 weeks

Details checked 2026-06-02

Get a final response letter or deadlock letter before going to the Ombudsman. You then have 6 months from that letter to refer the case.

Complain to Santander UK first and ask for a written final response. If they reject you or the deadline passes, you can take it to the Financial Ombudsman Service for free, and their decision is binding on the company.

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Details compiled for convenience. Always confirm the current contact on Santander UK's own site. A self-serve tool, not a law firm. Not legal advice.