This number is a scam - i KNOW for a fact i do not owe anything. First of all - i keep very very tight hold of my credit, have gotten a refund from the government every year, my work covers my mspo plus I called them and they said my account was clear. i have one credit card that has no balance, i have students loans in repayment.
this is a scam and i feel bad for anyone they are harassing that has debt and falls for whatever scam this is. Everytime they pretend I owe somethign and I tell them no i do not i talked to CRA last time you called from a different number - it stops for awhile, then it continues form a different number in a few weeks.

Its ARC, a collection agency for MSP.Don't worry, MSP cannot go on your credit report.

They called me today.. thanks for the heads up!

what kind of a cheap bunch of wanna be outfit would carry on solicitations on a sunday at two in the afternoon your bosses must be real proud of you next time leave a message or say something instead of hanging up grow some stones if you can bloodclot

They are collection company that buys debts from the goverment. THEY ARE NOT PART OF THE GOVERMENT!! Any collection agency is only allowed by law to contact you once a month, any more then that is harassment! The debt is allso only good for 7 years from the time they bought itfrom whomever sold them the debt in court. Basiclly these debts get bid on in a sort of auction through court. After 7 years by law they can not collect anything thanks to the statute of limitations law. FYI and pass it on.

They're calling me too.  I have never made enough money to owe the government anything.  Wtf