My host accepted full payment in Sept 2018 for a holiday in July 2020, in Sept 2019 he then sent a message saying airbnb had made a mistake with the price and that either I or him would need to cancel the booking. I told him that as I had paid in full in good faith and he had accepted the payment I would not be cancelling and so far I have heard nothing more. What is going to happen now, he obviously wants me to cancel so that he can resell the villa which is totally unfair.