Great Canadian Rewards is a loyalty program based in Canada that aims to provide valuable rewards and benefits to its members. However, there is limited information available about this specific program, and it appears that the name Great Canadian Rewards may not refer to a well-known or widely recognized company or brand. A search for this name primarily leads to websites and articles about various loyalty programs and reward systems in Canada, but not to a specific company with a comprehensive history or headquarters information.

Therefore, it is appropriate to respond with Not Found