Called the number. It's a female voice saying I have reached "514-Billet". If you punch your full phone number, they say you'll be off their SMS list within 24 to 48 hours (I didn't ask to be on the list in the first place!). You can call a representative at 514-245-5387.
Called the number. They say they are "514-Billet". Website: www.514billet.com
Spoke with the director Chantale Malette who said they were working on the list to assure that mistakes don't occur. If you have bought tickets from them over the Internet, they have your number. If they have your number and you did not buy from them, it's a mistake... sorry she says.