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We help resolve your complaint! Our AI cyber hornets are trained to help you write an effective Zilch complaint letter, and make sure your case gets taken seriously.

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Zilch customer service

Contact number
020 3405 9775
Complaints email
complaints@payzilch.com
Customer support
www.zilch.com
Head office
111 Buckingham Palace Road, London SW1W 0SR, United Kingdom

Contact details checked on 6 Nov 2026

Why use our complaint platform?

01

Written in minutes

We help you write an effective complaint in minutes. Our AI cyber hornets are trained on thousands of complaint letters that actually worked.

02

We will make some noise!

Your complaint gets the attention it deserves. Our cyber hornets could post it on social media, send it by printed letter or use other escalation tools at our disposal.

03

Your personal case coach

Our AI models open a case file and keep coaching after you file: what to reply, when to push, and how to escalate if nothing happens.

04

You are not alone

Join 73,608 consumers who refused to be ignored. Our community is there for advice while you chase your resolution.

Is Zilch legit?

Legit

Zilch is genuine, a UK buy-now-pay-later app with its own Mastercard card, yet sending something back does not pause the payments on its own. The plan keeps running until the shop passes the refund to Zilch, which can take up to 10 working days, so an instalment may still leave your account meanwhile.

What we checked

  • UK company since 2018
  • Authorised UK credit provider since 2020
  • Head office in London
  • Ratings on other review websites: 4.5/5

Watch out for

  • A failed instalment pushed back by Auto Snooze, with a fee of £1 or £2 added each time.
  • A plan paid off early, where the fee shown at checkout still applies in full.
  • A text or call asking for your Zilch card number, password or a one-time code.

Shop refunded you but Zilch still took the instalment?

We help you write it, it gets its own public page, and you can have it sent to Zilch as a formal letter.

File a Zilch complaint

Common customer service questions about Zilch

How do I file a complaint about Zilch?

Do you have a dispute or a bad customer experience with Zilch? 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.

How do I contact Zilch customer service?

The Zilch customer service number is 020 3405 9775, and Zilch also offers live chat in the Zilch app. Zilch publishes no general customer email address; for a complaint, its help centre names the in-app live chat and a separate complaints email, which is in the contact details above. Have the email address on your Zilch account ready, along with the retailer, the purchase date and amount, and the instalment the problem concerns.

Instalment, refund or fee problem with Zilch? Start your complaint here as well, and we push it out to Zilch by email, social media and printed letters.

What happens if I miss a Zilch payment?

If you miss a Zilch payment, Zilch says it does not charge late fees or interest on missed payments, but it may block your account until the overdue amount is repaid, and you cannot make new purchases while it is blocked. Missed payments can also lower your Zilch limit and harm your credit score, and Zilch says an instalment that stays unpaid for a long time may be passed to a debt recovery agency. You can still pay a missed instalment in the app under Purchases for a period after the due date. If you can see a payment coming that you cannot make, Zilch asks you to get in touch early to discuss support options, so do that in writing and keep the reply.

Account blocked over an instalment you believe you paid? Bring it through our complaint process: our trained AI opens a case for you and keeps coaching you on what to send Zilch next.

Where is my Zilch refund?

A Zilch refund passes through three hands: the retailer processes it, Zilch processes it, and then your bank shows it. For an online purchase you return the item to the retailer, and the retailer sends the refund to Zilch; refunds for in-store purchases are usually made at the till. For a Pay over time purchase, Zilch reduces the remaining instalments by the refund amount, while a Pay now purchase is refunded to the linked payment method. If the refund has not come through, get the retailer refund confirmation with its date and amount, because that is what Zilch needs to trace it.

Retailer and Zilch each pointing at the other over a refund? Put the case to us here: we place it alongside other Zilch customers with the same refund problem, and they can back you up.

Can I complain to the Financial Ombudsman Service about Zilch?

Yes: in the UK, the Financial Ombudsman Service covers complaints about the credit and payment services of Zilch, which Zilch Technology Limited provides. The ombudsman generally expects Zilch to have had the chance to put things right first, so keep a record of every chat, call and email with Zilch.

Instalment or refund dispute with Zilch? We help you write the complaint in minutes, with the plan, the payments and the refund dates side by side.

Is that message asking for my Zilch code real?

No. Zilch says it will never ask for your Zilch card number, account password, password recovery email or a one-time verification code. Be wary of any email, text or call that pushes you to act urgently, click a link or make a payment, and never pass on a code you did not request yourself.

What do people complain about most at Zilch?

Nothing has been reported about Zilch here yet. Our research shows what typically goes wrong at buy-now-pay-later apps in the UK: instalments taken on a different date or for a different amount than expected, retailer refunds that take time to come off the payment plan, fees on pay-over-time purchases or delayed instalments that were not expected, accounts blocked after a missed payment or during identity checks, spending limits cut without much explanation, and missed payments that end up on a credit record.

Instalment taken for an order the shop already refunded? Be the first to report it: your case opens the record the next Zilch shopper checks before splitting a purchase.

What happens after I submit my complaint?

Your complaint gets its own public page on Complain.biz and we get to work: we bring it to the attention of Zilch 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.

Can other consumers help me with my Zilch complaint?

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

Zilch complaints

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Zilch complaints per month

Dec 2025 - Nov 2026

Complaints filed on Complain.biz about Zilch in each of the last twelve months.

  • 0 Dec
  • 0 Jan
  • 0 Feb
  • 0 Mar
  • 0 Apr
  • 0 May
  • 0 Jun
  • 0 Jul
  • 0 Aug
  • 0 Sep
  • 0 Oct
  • 0 Nov

No complaints about Zilch yet. Yours can be the first.

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How Zilch compares

Zilch customer service compared to others in the Payment Providers category.

Company Complaints Biggest problem
Cash App 2,147 complaints Scams and unauthorised payments
NETeller 20 complaints Balance held after closure
Paysafecard 1 complaint
Paysera 1 complaint
Zilch (this page) 0 complaints No complaints yet
Clearpay 0 complaints No complaints yet
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