person said he was from Canada revenue agency and that I was undervervue and to phone (613) 699-2403

That's how you know it's a telemarketer. There is a delay on the lines. Due to money woes at one point I had to take a TM job and that would happen all the time. Just block number if you can.

who is this

I got the same thing. They re route your call,  and the device even says so

Knew my name and last name. I declined, since she didn't identify herself or the nature of the call. Say's she'll call back another time. Most likely some sort of collections. Ugh. (250) 714-0921

Automated call. Informing me of "winning" something via air miles...

Ya total [***]. Called my house & then my cell. WTF.