Unsatisfied service

I am very disappointed with the service that was given to me yesterday by booking.com. I made a booking with them online in Houtbaai Struggled to get a hold of the owner and when I did, the accommodation was not available. They then provided me with a second accomodation Which I have also paid for and was also not available. I had to pay for 2 accommodations which none of them could accommodate me. Now I have to wait for 7 to 12 days for my refund. Which I feel is unacceptable. No one is taking responsibility now. I was given am email address to complain. Only to receive an email back saying that the email address is no longer in use. The consultants over the phone told me there is nothing more they can do to help me.