To be fair, I think the problem is at the factory end in Hannover.
The factory seems to call the shots in terms of when they eventually “accept” the order from the dealer (which seems to randomly take from 2weeks up to many weeks), through to when build weeks are assigned both provisionally and confirmed.
Customer services database here seems entirely fed by what the factory does or doesn’t share .....which just seems to be random as there’s no apparent logic to it.
I’m seeing very little evidence of the infamous German efficiency, that’s for sure!