Contact us

WE ARE LOOKING FORWARD TO HEARING FROM YOU!

Diners Club UK
PO Box 66351
London
E14 1GQ

Our Customer Service Centra is open Monday to Friday between 8am & 5pm:

calling from the UK: 0870 1900 011
calling from Ireland: 0818 300026
international: +44 1 252 513 500
Type Talk (18001) 0870 909 4405 (UK only)
Fax: 0870 197 4536

You can also send us your queries and comments by e-mail to    citicards.dinerschqueriesciti.com

Please always quote your Diners Club account number in all correspondence. 

 Please do NOT use e-mail for one of the following requests:

• Change of address (please send by mail or fax)
• Change of personal data such as name or date of birth (please send a copy of your passport or ID card by mail or fax)
• Card cancellation / cancellation of membership (please send by mail or fax)
• Cancellation of rewards program (please send by mail or fax)
• Complaints regarding the monthly invoice / unrecognized charges (please send by mail or fax)
• If you want to receive a replacement card (if card damaged or lost), please call us on:
  0870 1900 011 (UK) / 0818 300 026 (Ireland).

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