Customer is Wrong for being early

Collected my vehicle this morning 2020-07-08 just after 07h30. On arrival the service consultant Melissa David's saw me as I arrived. The lady at the reception went and announced to her personally that I was there and I could see through the glass door that she saw me in the waiting area. She literally made me sit and wait for 45 mons - 50mins before she came to assist me. When she finally arrived she acted like nothing was wrong. However, when I mentioned that I didn't like that I had to wait that long she instead told me that I must know that she must 1st book the vehicles in that came for a service. This while there were about 2-3 more service agents who could have done this. She tried to blame the client for coming early to collect his vehicle. My dealing with her took no more than 5-10 mins. What happened to the customer is never wrong? What happened to good quality service?