Call Mercedes on this. I had to have the factory rep come out and deal with several issue with me. He was great. The dealer didn't like it but I didn't give a ***** after the service I got from them. The dealer was given fair warning. I didn't see it happen, but I think some poeple got an ass chewin' when I left.
I have also had my car come back with dirt marks, dust and road grime, dirty footprints etc. I didn't take the car in that way. I just think most of them don't care.
Sorry to hear about all the grief. Really, just start calling Mercedes direct. It took mr a few phone calls to get the right person, but it was worth it.