I've only been to the service department 3 times t...

I've only been to the service department 3 times total and this was the worst experience I've had so far. The staff didn't seem knowledgeable about the reason I was there. I was going in for a 40K mile oil change and on the paperwork it said a 20K mile service. I tried explaining and I had to tell them that I had already been in for my 30K mile service. Once all that was cleared up, I noticed on my paperwork that they had marked that my car came in with 46,424 miles, when it only had 40,424 miles. And to top it all off, I really just expected to get an oil change and with all the recommendations that come with the 40K service, I ended up shelling out $688. I just didn't get the attention to detail that I've been used to getting from this service department. It seems the service advisor position is a quick turnover position as I've had a different advisor every visit.