What is an acceptable proof of purchase?
SHOP PURCHASES: For in-store purchases Canon requires a copy of your receipt showing payment and the necessary product name information. The receipt must include the product purchased, the price you paid, the name of the retailer and the date of purchase.
WEBSITE PURCHASES: For online purchases Canon requires a copy of your order confirmation and the necessary product serial number information. The order confirmation must include the product purchased, the price you paid, the name of the retailer and the date of purchase.