************ and *****ed Service

I almost got **********, my car was consuming coolant and I took to Lindsay Saker Midrand for repairs as I always go to them for services. The quote came back charging me R21000 for replacing water pump and radiator , I didn't fall for it as my car was still performing good and it never overheated. I took it elsewhere, they diagnosed the car and discovered that it was just a leaking pipe and fixed it for merely R3000, and even now my car is in perfect condition. I've been driving it for weeks and even went Swaziland with it and back without any problem.I never expected that kind of dishonesty from them, now I'm worried to even take to them my next service because I can't trust them with my car anymore.