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

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Marbles customer service

Contact number
0333 220 2692
Customer support
www.marbles.com
Head office
NewDay Ltd, 7 Handyside Street, London N1C 4DA, United Kingdom

Contact details checked on 13 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 Marbles legit?

Legit

You can count on Marbles being real: it is a NewDay credit card for people building their credit, with starting limits of £250 to £1,500. Borrowing on it is dear, though, as the advertised rate is just under 35% a year, and with the limit reviewed after three months a balance can outgrow your budget.

What we checked

  • Issuer authorised and regulated since 2016
  • Issuer registered in England, 2010
  • Registered office in London
  • Ratings on other review websites: 4.5/5

Watch out for

  • A credit limit raised at a review, leaving more room to borrow than your income can comfortably repay.
  • A payment that arrives late or a balance over the limit, which add charges and can harm your credit file.
  • An email in the Marbles name asking for your account details or the three-digit code on the card.

Was your Marbles limit raised too far?

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

File a Marbles complaint

Common customer service questions about Marbles

How do I file a complaint about Marbles?

Do you have a dispute or a bad customer experience with Marbles? 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 Marbles customer service?

Marbles customer service is on 0333 220 2692 for account questions, payments and a lost or stolen card. Cardholders can also send a message through the Marbles online account manager, and the Marbles contact page, linked in the contact details above, lists a separate line for activating a card. Have your card number and your latest statement ready when you get in touch.

Charge or limit decision to dispute? Start your complaint here as well, and we push it out to Marbles by email, social media and printed letters.

How do I increase my Marbles credit limit?

Marbles reviews credit limits itself: its site says starting limits run from £250 to £1,500 and that a first limit review happens after 3 months, and any increase depends on how the account has been run and your wider credit position. You can ask Marbles customer service on 0333 220 2692 or through the online account manager whether a review is possible. A limit increase you do not want can be turned down, and you can ask for your limit to be lowered, by contacting Marbles.

Limit raised when you could not afford it? Raise it through our complaint process: our trained AI opens a case for you and keeps coaching you on what to reply to Marbles and when to push again.

How do I close my Marbles credit card?

To close a Marbles credit card, call Marbles customer service on 0333 220 2692 or send a message through the online account manager and ask for the account to be closed. Any balance still has to be repaid, so pay it off or agree how it will be repaid, cancel any recurring payments set up on the card, and ask for written confirmation that the account is closed and shows as settled on your credit report.

Check your last statement for interest or charges added after you asked to close the account, and keep it with the confirmation.

Can I take a Marbles complaint to the Financial Ombudsman Service?

Yes: Marbles points cardholders to the Financial Ombudsman Service, the independent UK service for disputes between consumers and financial businesses, for complaints about a Marbles credit card account with NewDay Ltd. The Financial Ombudsman Service generally expects Marbles to have had the chance to put things right first, so keep a record of every call, message and letter.

Charges or a limit decision you dispute? We help you write the complaint in minutes, with the statements and dates set out in order.

What do people complain about most at Marbles?

Nothing has been reported about Marbles here yet. Our research shows what typically goes wrong at credit cards for people building their credit: limits raised beyond what cardholders could afford, interest and late payment charges, payments that do not show on time, refused limit changes, collections contact when money is tight, and disputed entries on a credit report.

Limit raised when your budget could not carry it? Be the first to report it: your case opens the record for the next Marbles cardholder in the same spot.

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 Marbles 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 Marbles complaint?

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

Marbles complaints

0 complaints

Helpful experiences shared by Marbles customers. Search, discuss and connect with other people in our community.

Marbles complaints per month

Dec 2025 - Nov 2026

Complaints filed on Complain.biz about Marbles 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 Marbles yet. Yours can be the first.

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How Marbles compares

Marbles customer service compared to others in the Banks category.

Company Complaints Biggest problem
Revolut 17 complaints Money held or account blocked
HSBC 4 complaints
Barclays 1 complaint
Lloyds Bank 1 complaint
Marbles (this page) 0 complaints No complaints yet
Smile UK 0 complaints No complaints yet
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