Your were smart enough to opt out.  I called my visa company and traced the company, Tropical Travel, which had withdrawn my money.  I called Tropicaltravel.net and the lady said that they are not related to cancuncalling.com nor is Tropicaltravel.com.  They had written to the Attorney General about this scam but obviously the guys were off the hook.  The lady said that they have stopped in the US but started in Canada.  THE GUYS ARE VERY ORGANIZAED AND PROFESSIONAL AND THEY EVEN CALLED ME BACK TO CONFIRM MY ADDRESS TO SEND THE INFO PACKAGE.  PLEASE STOP THIS AND DO NOT BE THE NEXT VICTIM.

Just got a call from (519) 516-9898. Automated message saying i'm a Bell valued customer and I won $3000, press 1 to accept.

I received a call from this number and answered. ?It was a recorded message saying I won something.  I even have my number on the don't call list.

It's somewhat of a scam.  What they didn't mention is that you have to attend timeshare presentations.
I googled the company and a lot of people have shared the following...
The 90 minute timeshare presentation (in Cancun and Orlando) is actually at least 3 hours
It isn't all-inclusive.  If you want that option, you have to add $99USD/night.
The hotels are 2-3 stars, not the 5 star plus they mentioned
You have to pay a reservation fee and hotel tax
Flights to Cancun cost as much as an all-inclusive package itself so is it really worth it?!

Received a call from this number today (519) 516-9898.  Missed it cause I stepped out of the office.  It was a call to my cell phone in Toronto.No idea what it's about, no voicemail left.

Received a call from this number but didn't answer as it was an unknown number.Date & time call received: August 5, 2010 3:17 PM