Ah - I have just recieved this from the hotel:
Good Morning Mr Alexander,
I do apologize for this error it was a mistake on our part here at the hotel. We have been able to guarantee your reservation with the Mastercard on file ending 0082,
Again I do apologize for any inconvenience this may have caused you, But if you have any more questions or concerns feel to reach out to me or the hotel directly
Thank you and Have a great day