Poor Service

I booked my VW in for a scheduled service at VW Claremont, upon booking I asked if they could prioritise my vehicle as I needed it on the afternoon of the service, I was informed that it was a first come first serve basis which I cannot argue with. I arrived at 06h10 on the morning of my service and was the 3rd vehicle to arrive, by 07h15 when VW opened there were about 70 cars behind me, I checked my vehicle in and went to work, at 11h38 I got a message that my vehicle was next, I was annoyed as I find it hard to believe that in over 4 hours only 2 cars had been done, I called back but could not get hold of the person who left the message, they advised he would get back to me which he did not, I called again at 13h30 and managed to get hold of him only to be told that my car was next to go in??? I called the service manager who said that he would investigate and call me back, he did not, instead he got the same person that I had already spoken to, to call me back with no solution to my problem and no answers as to how I was 3rd in line but my car was still awaiting a service.