Shoppers Drug Mart Canada has a good offer available now. Your PC Optimum app will have a loadable 20x the points offer. This offer is valid until May 29, 2022, where you can get 20x the PC Optimum points when you use the offer in your app, spending the minimum required.
Shoppers Drug Mart’s flyer has a 2 Day sale, valid from May 28, 2022, until May 29, 2022.
Click here to view Shoppers Drug Mart Canada weekly flyers.
I do see the 20,000 points offer, but I cannot find 20x points.