Monzo complaint?

Do you have a dispute or a bad customer experience with Monzo? Report it through our website to maximize the chance of getting it resolved.

We help you write an effective complaint in minutes. Our AI models are trained on thousands of effective complaint letters. Then we push it through emails, social media, paper complaint letters and other tools at our disposal. And you are not alone: our helpful community is there for advice.

Monzo support runs through the in app chat: open the app, go to help and start a chat, which is the route that reaches an agent with your account in front of them. The number we hold for Monzo is +4420-3872-0620, and a UK bank line of this kind is meant for urgent matters such as a lost or stolen card and fraud on the account rather than general queries. There are no branches to walk into, so screenshot the chat as it happens: in app history is harder to reach once an account is restricted.

Treat any number given to you by someone who calls, texts or messages you claiming to be Monzo as fraud, and go back into the app instead. Start the case here as well and we push it out to Monzo by email, social media and printed letters.

Monzo freezes and closes accounts during fraud, sanctions and anti money laundering reviews, and UK banks are generally not permitted to explain the detail while a review is running, which is why the answers feel evasive. Ask three things in writing: whether the account is under review, what documents would resolve it, and when the balance will be released. Watch the app notifications closely, because a request for identity documents often lands there and expires. Keep a second account elsewhere so a freeze does not cut you off from your money.

A closure normally comes with notice and the balance returned, and if the money is held back you can ask for a final response in writing. That letter is what opens the door to the Financial Ombudsman Service in the UK, and we keep coaching you on what to send at each step.

A disputed card payment is raised inside the Monzo app: open the transaction, choose the option to report a problem, and answer the questions, which opens either a fraud claim or a chargeback against the merchant. Say clearly which one it is, because a payment you did not authorise is handled differently from a purchase that simply went wrong. Have the date, the amount, the merchant name exactly as it appears on the statement, and any emails or tracking showing what was promised against what arrived. Card scheme rules give a chargeback a time limit counted from the payment or the expected delivery date, so raise it early rather than after another round of emails with the seller.

If the claim is refused, ask for the reason in writing and for the evidence the merchant supplied. Set it out through our complaint process and we turn it into a written case in minutes, drawing on thousands of complaint letters that actually worked.

A Monzo complaint reaches the Financial Ombudsman Service once Monzo has issued its final response, or once the complaint has been open for the period UK rules allow a bank to investigate. Raise it in the app or in writing first and use the word complaint, because that is what starts the clock and puts it on the record as more than a chat message. Ask for the final response in writing and read it carefully: it sets out the bank's position and tells you how long you have to take the case further.

The Ombudsman service handles consumers and small businesses in the UK, and its decision binds the bank once you accept it. Other Monzo customers who were frozen out in the same way can find your case here, confirm it and tell you what shifted theirs.

So far consumers reported 1 complaint about Monzo here, too few to show a clear pattern yet. Our research shows what typically goes wrong at app based banks: accounts frozen or closed during fraud and compliance reviews, transfers held while checks run, disputed card payments and chargebacks that take a long time to settle, identity verification that fails at signup with no way to talk it through, and support that exists only as in app chat with no branch to visit.

Search the cases below to find one like yours.

Your complaint gets its own public page on Complain.biz and we get to work: we bring it to the attention of Monzo through emails, social media, paper complaint letters and other tools at our disposal.

And we stay with it after you file. Our trained AI opens a case file for you and keeps coaching: what to reply, when to push again, and how to escalate if nothing happens.

Yes. We have an active community of consumers, and complaints here are public: people who ran into the same problem with Monzo can give you advice or back you up with their own story. A complaint with a community behind it is much harder to overlook.