I received call as well from: 647-946-6653. These impostors said they were CRA. I called CRA and they said these guys ARE the FRAUDSTERS! Do not give these scammers anything! Give the real CRA a call! Number can be found on their website!
Real fraud! I have received a call from the number 647-946-6653 today. They represented their self as a CRA auditors/investigators! This number has to be reported to the local police services or RCMP-Reporting Scams and Frauds asap!
http://www.rcmp-grc.gc.ca/scams-fraudes/rep-sig-eng.htm
If you have not lost any money and have not provided personal or financial information (relating to a fraud or scam), and you simply want to inform the appropriate organizations, report it to the Canadian Anti-fraud Centre (CAFC) by calling 1-888-495-8501.