To those who are emailing P&G - P&G no longer owns Zest. They
sold it in January. It is now owned by High Ridge Brands - notice on the coupon is says mail to High Ridge Brands and not P&G :) I see someone who emailed P&G got a response saying they will get replacement coupons, but I don't see how P&G could issue coupons for a brand they no longer own. Hmmm.
The High Ridge Contact Us form is
here. I don't know if they have a Canadian site - that is all I could find for them. I used that form to ask if they have replacement coupons - hopefully I will get a response soon.