Pathetic service

I was looking to book a holiday house through AirBnb. I still had 1 enquiry that I needed an answer to before going ahead with the booking. I requested banking details to make a 50% payment as a deposit, once I receive the answer to my question. Next I got a message thanking me for my payment of the full amount out of my debit order account. I did not give banking details. I wanted to pay the deposit out of another account. A few years back I paid a booking, I made through AirBnd, out of my debit order account, but this was not part of my planning now. I never got the answer to my question via AirBnb. The host was so kind as to answer when I repeated my question to her. She assisted me as to how to go about to cancel the booking to get the R12 000 refund. I then got the first message from Air bnb saying the refund will take up to 15 working days to reflect in my account!!!!!!!!!!!!!!!! I will NEVER book through AirBnb EVER again