So, I submitted an order to Newegg. The next day, my credit card was charged, and listed that day as the purchase date. That same day, a rebate promotion started. Now, I would be good, since Newegg lists my date of purchase as the day the promotion started, however my invoice lists the date the order was submitted, not the date it was processed. Would it be unethical to change the invoice date to match the purchase date? Should I just send it in as is and hope the rebate company checks for the actual purchase date, and not just the day the order was submitted?