Service declined due to late date

Very bad service. My car was due for a service of 45km however I am on 46km. I visited the dealership Saturday 27th of May 2023, only to be told my service was rejected due to a late date. I have logged two complaints, received an sms saying that my case has been resolved yet I was not contacted. I logged another one on Monday 29 May 2023, did not receive a case number and when the consultant promised to call back, phone rang for 7 seconds then the call was dropped. Still today I am sitting with a car not serviced and still no communication.. I am furious that I need to following up. I am yet to log another complaint (3rd one to be exact)