Called on mobile said he was Erik from Revenue Canada and that I had a serious lawsuit against me. I needed to respond at once or serious charges would be filed against me. Ended the computer generated message with "have a blessed day"

I got the same call, Internal Revenue, serious lawsuit, "have a blessed day". That clinched it. A hoax.

Called office number and mentioned Eric from Internal Revenue Service and same message have a blessed day.  Any legit call from CRA is an actual person and not a phone bot!