Wow. Just Wow. Can't believe there are still dealerships out there with SA's that don't know WTF to do with M-DCT cars (or E9x M3's in general). If you do end up going to this dealership, be sure to take the service bulletin with you (RE: M-DCT fluid).
I just had my service done about a little over a week ago and the car has been flawless.
Past: 2008 M3 (E93) naturally aspirated V8 realness!
Past: 2012 740Li (F02) M-Sport (European Delivery)
Present: 2016 750i (G12) M-Sport