I got a request on my mobile phone regarding a customer wanting to stay and i replied and said yes but by the time I got online and realised my sms message didn't get to her it was past the acceptance date of the holiday she wanted. She is now asking for a refund. Airbnb need to either stop sending sms to mobile phones or when we reply to them work on them straight away and send them to the customers straight away. My guest wants her money back which is fair to me but i don't think I should have to be out of pocket with cancellation fees etc as the speed of requests and replies getting to and from mobile and airbnb is too slow. How can I reverse the payment so she gets all her monies back without me having to pay any penalties.