Contact Us

Help us direct your enquiry to the right team.

Raising a Complaint

Cardnet aims to give you the highest level of service. So if we make a mistake, or if there is something you feel we could do better, please tell us and we’ll do our best to put it right. Most problems that arise can be resolved quickly if you talk to us as soon as possible.

You can contact us by:

Telephoning our Cardnet Helpline on 01268 567100

Emailing us at

Writing to us at the following address:

Cardnet Merchant Services
Phoenix House
Christopher Martin Road
Essex SS14 3EZ

When you call us you will need to have your merchant account number(s) to hand. Please remember, for security reasons, never to send this information to us by email.

Complaints procedures (PDF, 502KB)

Get in touch

New Customers - 0330 134 7976

Existing Customers - 01268 567 100

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