Ron came in with a check engine light and a squealing belt that he had replaced. Check engine light was a EVAP purge solenoid and his belt problem was due to someone before us had used some kind of thick white lubricant on his new belt. Purge valve was easy fix, and we had to clean all of the pulleys and install a new belt-Both of which fixed his problems.He hard some concerns about transmission service and we gave him all options to choose from. After our discussion he OK'd the work. I would have thought that if there was any more questions or concerns that it would have been addressed at that time. I'm not real sure why Ron is unhappy. Have attempted to contact him several times to discuss this but will not return my calls.