Visa: You may have to enter a passcode, which would be sent to your mobile phone or landline or authenticate your payment in another way, depending on how your Visa Card issuing bank has implemented the new security measures.

Postcode: It is very important when you log in to check that Line 3 of your address is populated and that you have provided a valid Eircode/Postcode in the place provided. Find your Eircode here
When you have made your online payment you will receive an automated receipt which is the evidence of enrolment required by the Medical Council