Sir, This silence might cost you dearly as if the delivery gets delayed to Jan; Atlas may ask to pay additional amount as per PBO; legally price at delivery applies.
I strongly am against this trend but recently MG customers (fully paid months in advance) had to pay 2 lac extra for their late December delivery cars.. so precedent has now been set ; Atlas may follow suit as they don't let go of any chance to make money...
Don't trust the dealership in this regards; they don't know squat ... contact the company and press for earliest delivery ..
This December invoice date is a ridiculous thing ... I just sold my earlier ride a couple of months ago well above market price (for that particular model & variant) in 3 days due to outstanding condition.
Real buyers don't give a damn about invoice date its the rides actual worth which matters.