Got the same thing - pressed 0 and waited for about 5-10 minutes on hold. When I finally spoke to someone they said they were from some Caribbean Resort and immediately wanted me to tell them my name. I instead asked if I could have my number removed from the calling list, to which they hung up right away. Definitely a scam folks

Spam caller.  You have been selected by Air canada for a prize.

Called me but I missed the call. I called back and they hung up on me. Very similar behavior to a scam caller based on my expirience and other comments.

called just now after 9pm. didnt answer. checked here and good call not answering

The caller automatically answered after picking up the phone:  Congratulations! you are selected by Air Canada to give you a coupon of $999... then I hung up.