Mark Duguay from Windsor, Ont., says he gave $275 worth of Tim Hortons gift cards to friends, but none of the cards were redeemable. They'd all been drained by a scammer. Read more: https://www.cbc.ca/9.7021349 »»» Subscribe to CBC News to watch more videos: http://bit.ly/1RreYWS For breaking news, video, audio and in-depth coverage: https://www.cbc.ca/news Follow CBC News on TikTok: https://www.tiktok.com/@cbcnews Subscribe to CBC News on Snapchat: https://bit.ly/3leaWsr Download the CBC News