I would take a hard pass, but I may me more particular about this than others. I paid zero. So I see this:
Strike one - dot com instead of dot ca. Dot com is commercial as in commerce
Strike two - they are on Facebook for crying out loud
Strike three - they are charging money for a prescription, like I want to pay for permission to do what is legal now.
Is that even legal? Seems to me they may be morally bankrupt, charging for a medical prescription. Grow 4 trees and show them you do not need permission to make your own medicine.