Merchants in Canada or US should NEVER use Canpar courier service! You will lose customers this way, as they do not answer their phones or respond to clients via live chat, and they do not have any viable solutions to help you.
Canpar's delivery people leave packages on front doorsteps and sign on the recipient's behalf classifying it as "delivered". This is fraudulent. They do not ring the recipient's doorbell or give an opportunity to sign. I'm not sure what their screening process is for delivery people, but the bar must be set extremely low.
Furthermore, when you try to call Canpar, they do not answer and you will continually get a busy signal from their *******335 number. If you happen to win the lottery and get through, you can expect to wait a long time. I was on the phone waiting for an agent for over 50 minutes. They keep promoting their live chat tool, but even that is a failure, because you wait longer than 10 minutes. And, here's the kicker, after 5 minutes the live chat is rendered INACTIVE.