Shady business that phishing customer's credit cards. I was in Toronto and Niagara falls in May 2015 for a business trip. The only place I used my corporate AMEX card was at Niagara falls. 6 month later and exactly 6 month later a CAD $20 authorization came through my credit card. It was just an authorization so if I didn't setup transaction alerts with AMEX it would slipped through without me knowing. Lucky I was paged immediately when the Authorization was requested. I was not even in Canada at the time. This is a typical shady business who collects credit cards from customers and wait a while before they run a small amount in authorization to ensure it is a valid credit cards. If you didn't notice, the large fraudulent transaction would follow shortly.
This taxi company is for sure a shady company and I reported them to AMEX and local authority.