Not sure, may be trying using the link "subscribe to offers" on top right corner on their main page:
https://www.shoppersdrugmart.ca/opti...l?tracking=nav
Then sign in using your card and update information. I think that is what I did when I got my new card and I do get offers every Friday.
I went to shoppers to get free soft soap beside other stuff and it was a senior cashier who could not make it work since coupon price $2.50 was more than price of the item ($1.99). She gave me this explanation and I just took my coupon back. Went to another location and the girl there had no issues in processing the coupon. I have learnt how to use coupons now :).