Got ****med for R40 000

I wanted to buy a caravan from outo oasis auctions. I paid them R40 000. Then got told I have to pay R36 000 more. When I said I wanted my money back I was told to pay R6500 canselasion vee in order for me to get my money back. Now my bank informed me that the money has been spent and they can not refund me. I have opened a ******** case for theft and ***** against the company and it's imploees . please be careful before you think of buying something for them. Thank. Kind regards Jacques van Tonder.