Will not refund deposit

We bid on a vehicle on auction but unfortunately due to work commitments we were unable to view as the NP200 in good condition is a hot commodity. My finance was approved and I immediately got a mail to sign an OTP within 48 hours or I lost the deal. We were only able to go to Webuycars a couple days later on the weekend. Once we saw the vehicle. Which was listed as GOLD there were significant damages that were not evident on the photos on the auction. And Ronnie, the salesman when he drove it in also agreed that the clutch 'felt funny'. So we looked at some other NP200's and ask Ronnie to cancel the deal. Now Webuycars will not cancel or refund me my R4000 deposit. I have since found another NP200 at another dealer and need the R4000. This is unacceptable. Surely it is the buyers right to cancel the deal if and when she sees fit.