google shopping mismatched price Currency

My site currently supports USD and CAD currency. I run google shopping ads and target both United States and Canada.

Under the plugin settings, I have disabled the use of Javascript so my URL uses query strings eg. ?wmc-currency=CAD
Also uses session instead of cookies. Enabled fixed price and disabled beauty price. My woocommerce current default currency is USD. When I create a shopping feed under merchant center to target Canada, I am getting disapproval for mismatched pricing. For some reason, google is still crawling usd currency. Is there any way to fix this? The real reason for me to purchase this plugin is to allow me to setup a CAD currency to target different countries under google shopping. Looking forward to support, thank you.