Toyota Service Can't Resolve PCS Error on My Car and I Need Immediate Help

My Toyota racing car from 2017 is giving me a PCS error message telling me to call a certified repair center. When I called the Toyota service center in Aydın, they said my car would have to stay there for a week. Then I went to Toyota in Bodrum. They checked out the car and told me they'd call the head office in Istanbul and get back to me. I don't understand how an authorized service place can't fix this. Why do they sell the car in the first place if they can't even figure out what's wrong? The license plate number on my car is 27 AU ***, and I expect this problem to be fixed right away. It's annoying to be stuck in this position without a clear way out.