Hi all! Thank you for all your advice. My friend and her fiance decided to go ahead with their appeal at the time.... I have not heard from her since. I worry.
She mentioned that they had to pay some money for the appeal (a lot more expense) and they are aware that they will have to wait a while to get the result of the appeal. She also mentioned that if the decision gets overturned, she will be able to get some money back. But no wedding is happening this month

Thanks again for all your time and advice!