Vacation Privileges Complete Scam--Stay Away, complain if ripped off, post to their FB page scottsdale Arizona

Totally ripped off by Groupo Vidante sale of a vacation package with Vacation Privileges. I wish I had read the reviews first. So many people were also scammed. This started at a Thrifty rent-a-car in Tulum. The desk guy sent me over to a guy at a podium for directions/maps. He was an employee of Groupo Maya resorts, and he convinced me to come to the resort in Tulum to get a tour, free breakfast, and free tickets to local water park. The 90 minute tour turned into almost three hours, including lots of hard sales talk to get me to put down $17,000 for a lifetime timeshare. I was shown a huge book of wonderful properties all over the world at which I could stay. When I balked, and started to leave, another salesman on the way out convinced me to buy one year at $1,800,

which was to include multiple weeks at $299-399 per week all over the world, and $1,000 credit to use toward airfare and car rentals. I asked to have a copy of the book to take home, and was told it would be mailed to me. As soon as I got home I went on Vacation Privileges website and found that the listings were not as nice or extensive a in the book that I was shown. Also, Vacation Privileges seemed to know nothing about the $1000 credit. I asked for a refund and was told I had to talk to Groupo Vidante. At that point, since the company is in Mexico, I decided to dispute the charge with American Express. I just received a letter from AmEX that they contacted Groupo Vidante and was told that GV has no record of my cancellation request. So, I am now asking Groupo Vidante, via the FB page of their resort Mayan Palace, for a full refund.