sagepay form integration - error 3045
问题 I'm setting up a simple PHP form to send transactions to sagepay using form integration, the cryptkey is setup as follows: $PAYMENT_CRYPT = "VendorTxCode=website &Amount=$total &Currency=GBP &Description=Ticket &SuccessURL=EDITED-OUT/registered-thanks &FailureURL=EDITED-OUT/registered-fail &BillingSurname=$surname &BillingFirstnames=$firstname &BillingAddress1=$address1 &BillingCity=$city &BillingPostCode=$postcode &BillingCountry=UK &DeliverySurname=$surname &DeliveryFirstnames=$firstname