A retail installment sale is a transaction between you and a dealer to purchase a vehicle where, you agree to pay the dealer over time. Typically the dealer will have you sign a paper that turns the actual rebate over to them, then they will credit you on the sale.Submission of a Sales Order is an offer to purchase a subscription Service from Ford Pro. If multiple Buyers are listed in the agreements comprising the Purchase. If you need copies of documents associated with the purchase of your vehicle, contact your Salesperson or the Sales Manager at your Ford Dealer.