DTM Helderberg - terrible experience

I have a 2003 Renault Clio that was booked for a diagnostic test on Wednesday 02.07.25. This vehicle had to be towed as it broke down a few days before. I wanted to know all her problems and had my husband make the difficult journey from Stellenbosch to Strand with our 3 year old son. Mr Juandrè Haughton │ Manager Workshop Service Department │ DTM Helderberg │ +27 (0) 21 ***, took one look at my old car and refused service. He didn't touch the car, so telling me it would be too expensive to fix without looking under the hood makes me suspicious. This car was there for a diagnostic test, nothing else... Time and money was wasted. The dealership had the cars paperwork and knew it was an old car. Why was service denied?