Escalate Anything

M&T Bank: unauthorized charge

Report the card lost or stolen at once (24/7 by phone, Online Banking or app); locking the card is not the same as reporting it.

ACredibility A · last verified 2026-10-13 · 100% official or government sources
What does this mean?

Grade A (high: almost everything comes from official pages read directly). 100% of 19 sources are the organization's own pages or government sites.

All M&T Bank contactsOpen in the interactive directoryJSON

Collect

Steps

  1. Call the lost or stolen card line, or report it in Online Banking or the app.

    PhoneReport a lost or stolen M&T debit or credit card +1-800-724-1552 Account holder only
  2. Report the unauthorized charges to the Telephone Banking Center.

    PhoneM&T Telephone Banking Center (Contact Us); fraud on M&T accounts, transaction errors +1-800-724-2440 Account holder only
  3. If M&T does not resolve it, complain to the CFPB.

More contacts for this issue

PhoneReplace a card (credit card customers) +1-866-279-0888 Account holder only
PhoneReplace a card (business banking customers) +1-800-724-6070 Account holder only
AppReport a lost or stolen card in Online Banking or the M&T Mobile App Online Banking > Services Menu > Report a Lost or Stolen Card (app - Card Services > Report a Lost or Stolen Card) Sign-in required
MailWritten notice of a debit card transaction error Manufacturers and Traders Trust Company, P.O. Box 767, Buffalo, NY 14240-0767

Facts you can cite

Rules in force

If that fails, escalate

Go up one step at a time. Keep the reference numbers and dates from each contact.

  1. Customer service

    PhoneM&T Telephone Banking Center (Contact Us); fraud on M&T accounts, transaction errors +1-800-724-2440 Account holder only
  2. Written complaint

    MailWritten notice of a debit card transaction error Manufacturers and Traders Trust Company, P.O. Box 767, Buffalo, NY 14240-0767

    For debit card errors. M&T publishes no general complaint address.

  3. Federal regulator

  4. Federal regulator

  5. State agency

    Your state’s financial regulator. Find it in the list of state agencies (also as JSON: states/<code>.json, for example states/ny.json).

Watch out

  • Phone lines verify the account holder.
  • M&T publishes no general complaint mailing address or online complaint form on the pages checked.

Let your AI agent handle this

Escalate Anything is a free, open-source MCP server for Claude, Cursor, VS Code, Gemini CLI, Codex and other AI apps. Your agent gets this playbook, keeps a case log with reference numbers and follow-up dates, and drafts each message for you to approve.

1. Set it up (needs uv):

uvx escalate-anything setup

2. Ask your agent:

M&T Bank charged me [amount] on [date] and I did not authorize it. Use Escalate Anything to get it reversed.

Source code, other install options and the Claude Code plugin

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