Bad communication

I bought a car more than a month ago. The worst communication in the world! I basically had to beg them to buy it. I kept on being told they will come back to me with this and that, but I never did, and always just had to follow up with them again. Communication is non existing, probably only about getting commission and not about good customer service. At least I got the car and am happy with that part, but now I'm struggling to get an answer about when my NATIS/vehicle documents will be ready and on my name. My sales agent originally said 3 weeks, a different agent who was there the day I picked up my car said 7 days, then my agent said again 2 weeks.. now its a month and a half and again I keep asking, without any feedback, my number is probably blocked. One of the Weelee numbers on their website isnt working and the other goes to reception, just to be told theyll tell my agent I called. Cannot wait for this experience to be over and wrapped up.