General rule of industry is; if price increased 30-45 days before deivery when you have made full payment, no change. If no full payment was made and price increased, then new price will prevail.
October delivery? Bro yahan August ki fwd nahi mil rahi aur kia walay mu say keh rahay oct end or nov start. If your car is the same tau umeed kum he rakhayn of timely delivery.