Please investigate as to why my phone number is being used in Calgary, Alberta, Canada. I may have an idea as to whom is responsible for this activity.

Appears to be a spoofed number being used by card holder scammers.  Calls may be originating off-shore.

800Notes does not offer such a service. If they desire, individuals with free time may help with the same research you might do yourself. Mainly we're supposed to report what we know first hand. I suspect you are currently in the best position to help identify the caller.