Upload & Sell: On
The discount isn't at the eStore. It's at (or through) your local photo shop. The best way to do it is to walk in, all confident like, and ask to talk with the manager. Ask her to get you the CPS Canada price for the gear you want to buy. The figures might be at her fingertips, or she might have to ask Canon - should take a day or two, at the most. Sometimes, you'll get it from what's 'on the shelf' at the store. More often, it'll be shipped from CPS to the store. That's usually a week, maybe two if you're in Nanaimo.
For the shop, it's a sort of mixed-blessing. They get virtually no return on the transaction. OTOH, it's an excellent opportunity for you to get to know some important people in your local retail supply chain. These contacts can be incredibly useful to help you when you have 'problems' with the 'mothership' (i.e. Canon) - not that this would ever happen...
You have to appreciate that not all Canon products have CPS prices. Usually, it's the expensive gears that have the discount. For example, the 5DIII and 6D don't have CPS discount prices (last time I checked). OTOH, the 1DX and 500/4L IS II do. The initial-purchase CPS savings on the four "L" lenses in your profile would pay for your CPS membership for at least the next five years, maybe seven.
Also, you get super-fantastic value through the CPS service fixed-rate prices. That includes the stuffs that are covered by the 'discount' program, plus anything else that you can register in your CPS profile (including a 5DIII or 6D, for example).
Have you registered your gear profile at CPS Canada? It has to be registered before you can get the fixed-price repair rate.
As Joe Walsh says, "Welcome to the club".