Cardnet: Terminal problems

Terminal Problems

If you're experiencing technical difficulties with your machines call the technical enquiries numbers on our useful numbers (PDF, 73KB).

MAC Key Reset

If you need to perform a MAC key reset we’ve created a user guide (PDF, 504KB) for all of the most common card machines.

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New Customers - 0330 134 7976
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Cardnet FAQs

Get answers to the most-commonly asked questions about taking payments with Cardnet.

FAQs