Worse tour in my life. 10 minuites only

Restuarant is very dirty and old. Waiting area are reception is extremely hot due to zinc roof. The tour only lasts 10 minutes although they state its 30 minutes. The tour guide is racist and didn't say much the entire tour, he gave the white tourists a longer tour then ours by atleast 10 minuites. The guide literally took us out the gate after the tour as if we were not welcome it the first place.