Voice recorded message calling non stop

I missed to answer a call from the number (780) 971-5656. Nobody left for me a voice mail or a written message, I called back there was no answering machine or operator. I could not know the caller at he beginning. That action was not nice because nobody likes to see missed calls on hie mobile without knowing the caller

I got a recorded voice saying I won 2,500 airmiles.  It ask that I press '1' to accept the call.  The phone went dead after 2 secs because I didn't press '1'.

westjet does care and managed to shut down the mexican company doing this last year, but these scammers just change their name and buy a new number, this time from alberta

Automated calling dialler.

keep getting calls from this number and I have no clue who it is