Lorcan
Forum Buddy
You should be able to pay over the phone. I have done it a few times. They will need your card number and security number on your card to do that - they should even be able to do it in the reception when you give them your card. It is at least worth a try. But if it works online, it should.
I was wondering about that when I was there, because I heard a couple of payments go through over the phone (although the keypad noise had the goblins trilling, lol).