Covert Chrysler Dodge Jeep Ram

I would like to start off by saying my Service consultant Aaron Barker was great and he was a pleasure to work with. I took my car in for a Tract Control light that was coming on , the technician suggested that I replace the Clock Spring and Manifold.The cost for both would be close to 2000 , I asked if I were to replace the Clock spring ( which was close to 600 ) it would take care of the issue and I was told yes. My car is still acting up and ligghts are coming on , I called and complained and all I was told is that " they thought " it would take care of the issue. I am now out 600 dollars and My car is still not fixed . Technicians should not quote and guiarantee anything without knowing the cause for sure .