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

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

This # is WestJet, which they are calling back. Had phoned them ref a reservation, they were busy, so they eventually called back

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.

I had a phone while on my computer saying it was going to crash so they went on my computer remotely done tests then ask me for £169.,00.They had my mobile number of me. I have no idea if this is a genuine call.

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