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Type in the customer’s card number expiry date
and security code then select .
If there are numbers in the customer post code
select .
Enter the numbers from the cardholder’s postcode
(e.g. NW1 6XG is 16), and the numbers from the
cardholder’s address (e.g. Flat 221b is 221)
select .
The terminal will connect to gain authorisation.
The result of the CSC/AVS check is then shown
and will prompt you to choose “Decline” or “Accept”.