Well after threatening my dealer with cancellation I finally got a reply today. New order form showing the lower AP and an estimated delivery date of 30th June.
Very nice sometimes you have to play hardball, our dealer has been very helpful and adjusted the AP without question. We simply phoned him and asked to cancel the order and resubmit it so we could get the lower AP and he was like no problem. Under no circumstances would we have paid the higher AP we would have sat in the dealership on collection day refusing to put our pin in if that was the case lol ?