We are sorry to hear you were not happy with our services. We did provide you an extensive diagnosis of problems with your vehicle and then gave you the extra time to decide on what you wanted to do. However, it was your decision to not have repairs done and you discussed selling the vehicle. Therefore, there were no repairs to "put the cost of diagnosis toward".
Every customer is informed prior to leaving the vehicle that there is a diagnosis fee for the technicians time and effort, if repairs are not made while the vehicle is in our shop.
We hope in the future you can find a repair facility that meets your needs.