ME TO This is very disturbing What can we do to stop these type of calls
I also get calls every day from different cities in the United States

I had left a message for them to call me

unknown number calling

Westjet....this is their number when they "call back" from Westjet auto message centre.

Check with with your phone company. Some phone companies have a feature to be able to block certain numbers from calling you. It's worth a try. I have never had occasion to use this service; only heard about it.

This is true - It's a call back number from WestJet.

Confirmed, I called West Jet and instead of holding on the line for "the next available operator" I chose to have them call me back.  They gave an estimate of three to five minutes wait time and sure enough, a few minutes later their call back showed up as (403) 444-2113.  At first it sounded like an auto dialer sales call; there was that same dead air while it registered on their system that someone picked up. Next there was a recording to press 1 when the person who asked for the call back was on the line.  Pretty smart actually, as it eliminated the inevitable "it's for you" shout out.

if you've given them card info, too late, you've been conned - get on to your card company at once & see if they can block the payment to stop these fraudsters stealing your money; recommend you take PC to reputable local firm to see what malware they've stuck on it, or they'll keep returning for more (you'll need a replacement credit card); if credit company can't help, contact trading standards or CAB, who have experience of these matters, but I think distance selling regs come into it, but don't quote me; consider reporting to Action Fraud (Google their website) to try to get this number shut down before someone else falls into trap.