For customer service/support for your TD Canada Trust Visa Credit Card, or if your card has been lost or stolen, make a call to the following telephone number:

1-800-983-8472.

If you are overseas, or otherwise outside of North America, call TD Canada Trust Visa Credit Card Services COLLECT at: (416) 983-8472

For BMO Mosaic Mastercard Support, here are the numbers to call for help, as from the back of a BMO Mosaic US Dollar Mastercard, which seems to be the only no-fee US$ card in Canada:

USA/Canada: 1-800-263-2263

Overseas (Which you may call collect): 514-877-0330