Dont use Gavin Mechanic in Benoni

My car wasn't starting properly so I took my car to Gavin and he told me - with attitude and in a very condescending way - that it has something to do with the petrol and that it will eventually start but if I want to fix it it would cost R4000 he said there is another option that would cost less which he did but then my car started leaking petrol and I had to get it towed only to find out by another mechanic that the other option is only for diesel cars and this option damages petrol cars. so after wasting time and money with Gavin I take it to Kia to get sorted properly only to find out that the problem has nothing to do with the petrol, it had to do with the key and it didnt cost anything close to R4000. So Gavin either knows nothing about mechanics or cars or he is trying to ***** peoples money. I do not recommend Gavin as a mechanic at all!!!! He also doesnt service the car properly! very disappointing.