AuctionInc does not sell your property in 3 weeks as they claim

I approached Auction Inc to Auction my property after seeing their advert claiming they can sell a property in 3 weeks. I was assisted by Jodi Dayan. I paid R11 500 for the advertising of the Auction. The day of the Auction came and was told there was not even a single offer. not even less than what we hoped for ..zero. I asked what's the way forward and was told there is an interested buyer who wants to view next week and that never materialized. Then I approached them to ask again about the way forward and was told they will advertise the property on Skyrise properties. Two months of silence since, until I terminated the mandate. so I basically gave away R 11 500 under the false promise that Auctioninc can sell a property in 3 weeks...it's been 3 months now. And that's how I lost R11 500