Here is the Metro Canada coupon policy (I received this response when I asked them about coupon acceptance in their stores):
Unfortunately, due to fraudulent activity with internet coupons, we do not accept coupons that are printed from any other websites, either on-line coupons or e-coupons.
We accept manufacturer coupons issued by Save.ca and webSaver.ca. These coupons are ordered from the website and mailed to the Customer’s home. These coupons are not printed from the internet.
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