investigated. case closed.
1 800 931-1026- this is Canada Revenue Agency, collections department (if you owe them money); they work till 11pm, that's why to some folks it appeared suspicious. If you question them - they are polite and offer verification procedure- you can call main Fed.Gov't line (1 800 oCanada) and verify. Not to mention full gov't IVR menu and prof. manners.
Don't be scared, if you don't ask like a**hole, they can be nice people too.
Caller ID: GOC-GDC
Caller: Canada Revenue Agency
Call Type: Debt Collector