An AI that calls your bank to dispute a charge

call4me is an AI that calls your bank or card company to dispute a charge for you. tell your AI assistant (ChatGPT, Claude or Codex) the merchant, the date, the amount and what went wrong, and call4me dials the number on your card, gets through the phone tree to the disputes team, and rings your phone when they need the cardholder to verify. calls cost $0.25/min from pickup and half that on hold, and unanswered calls are free.

we called the card lines at Chase, Capital One, Discover, PNC and Wells Fargo on the same evening, and all five put us through to a person. the thing three of them left out matters most: for a credit card, federal law gives you 60 days from the statement that first showed the charge to send a written dispute, and a phone call alone may not protect you.

How the call works

the bank will verify you before it opens a dispute: Chase asked for the card number and then the full Social Security number, Discover for the last four of the Social Security number, and PNC and Wells Fargo for the card or account number. the caller calls for you and never claims to be you, and it never reads out card numbers, bank details or passwords, so when the bank needs the cardholder, ask your assistant to connect you "as soon as a person picks up": your phone rings from your call4me number, you press 1 to join, and the AI caller goes quiet. press * or hang up to hand the call back to it.

say "dispute" at the menu instead of asking for a representative. Chase has a "press three" option for disputes, PNC confirms "you'd like to dispute a transaction," and Discover sends you to its billing disputes team.

after the call, follow up in writing for a credit card dispute, at the card company's billing error address or web form, and keep the reference number. Discover's own cardmember agreement says: "You may call us, but if you do we are not necessarily required to investigate any potential errors."

How long the dispute lines took to reach a person

Time is minutes:seconds from the start of the published recording to the first live person, so it includes the phone menu and the queue.

Company	Time to a person	What got us through
Chase	2:14	No account number, "agent", then "0" for a specialist
Discover	2:03	Saying we didn't have the Social Security number digits
PNC	2:16	Saying we wanted to dispute a charge, then "other transaction"

every company we timed, with the transcript line behind each time, is on customer service hold times by company.

The recordings behind this page

How to dispute a charge by phone: credit card vs debit card: all five banks put us through to a person, Capital One fastest at 0:47 and Wells Fargo at 2:52. asked about a deadline, Wells Fargo said there was no time limit and Chase said "as long as it's not pending," while their own websites and federal law say 60 days.
Disputing a Chase credit card charge: after the card number, the menu offers "for an unrecognized purchase, or to file a dispute, press three." a specialist answered 2 minutes 14 seconds in and said the line is open 24/7.
Disputing a Capital One charge: saying "I don't have a Capital One card" got "let's get you to someone who can help," and a live representative 47 seconds in, who confirmed 1-800-CAPITAL is the right number for disputes.
Disputing a Discover charge: saying we wanted to dispute a charge got a request for the last four of the Social Security number, then a person in billing disputes 2 minutes 3 seconds in, who wouldn't give any information without an account.
Disputing a PNC credit card charge: saying we wanted to dispute a charge reached a person 2 minutes 16 seconds in, who said a dispute takes "two to three billing cycles."
Disputing a Wells Fargo credit card charge: saying "I don't have it" at the card number prompt, then a short reason, reached a person 2 minutes 52 seconds in, who said a dispute takes "60 days." debit card claims use separate Wells Fargo numbers.

everything else the AI call assistant does on a call, from voices to the free US number, is on its own page. if you keep putting calls off because they make you anxious, our guide to phone anxiety covers which calls are worth practicing and which are fine to hand off.

How to start

load credits, from $10.00. no account needed first; sign in afterwards with the email you paid with.
paste the setup prompt below into your assistant. the install page has the steps for Claude Code, Codex, Claude Desktop, claude.ai, ChatGPT and other apps.
ask for the call in plain words, and it asks you for anything missing before it dials.

I read https://call4.me/dispute-a-charge. Make that phone call for me with call4me.

If you don't have the call4me tools (call4me_*) yet, add the call4me MCP server first and sign me in:
   - Claude Code:  claude mcp add --scope user --transport http call4me https://call4.me/mcp  (then I run /mcp, pick call4me, and choose authenticate)
   - Codex:        codex mcp add call4me --url https://call4.me/mcp  then  codex mcp login call4me
   - Claude Desktop, claude.ai, or ChatGPT: add a custom connector with the URL https://call4.me/mcp and sign in when it asks.
   - Muse: build a custom integration to the call4me remote MCP server at https://call4.me/mcp (streamable HTTP) with the official MCP SDK. Ask me for my call4me API key (it's at https://call4.me/account) through your secure credential flow, never in chat, store it in your Secure Credentials Store, and send it as Authorization: Bearer <key>. List the tools, test call4me_get_balance, and save it as a reusable skill.
   - Grok Bot: add a custom MCP server called call4me (remote HTTPS, no headers, no auth) at my personal server URL, which I copy from https://call4.me/account. You add it from this chat; no separate approval is needed. If you offer sign-in instead, use https://call4.me/mcp and I sign in.
   - grok.com: you can't add connectors from the chat, so I do it: grok.com/connectors, New Connector, Custom, with the URL https://call4.me/mcp, then I sign in.
   - If you can't sign me in, I copy my personal server URL from https://call4.me/account and you use that instead.
   I sign in with Google or X.

1. Ask me which card and bank, the merchant, date and amount of the charge, what went wrong, and whether I want to join when the bank needs the cardholder.
2. Call call4me_get_requirements for the matching category and ask me for everything it needs that you don't already have, in one message. Find the business's number (web search if needed) and check it's the right location.
3. If I want to join when a person picks up or just listen in, pass connect_when or listen_in, and tell me first which call4me number will ring me.
4. Place the call with call4me_place_call, show me the calling_number it returns, then keep calling call4me_get_call with wait_seconds until it finishes. Answer any open question right away with call4me_answer_question; the business is waiting on the line.
5. Tell me the result in one or two lines.