Royal Holiday membership scam in Cancun, Mexico

I bought a timeshare with Royal Holiday and they lied to me at everything, every time I check for travel dates are not available and it's cheaper to booked flight and hotel with Expedia. The service is really bad, I asked to speak to the manager and was told that I cannot talk to her and that I cannot cancel my membership.
Its been a nightmare for me!!! I was doing a research on internet about this fraudulent resort and how to get out of this fraud, i found this information and i want to share it with you, i hope it helps someone:

http://www.timesharescam.com/blog/189-how-to-cancel-a-royal-holiday-timeshare-membership/

Why can't you cancel if you are still in Cancun? All you have to do is call isn't it?

Dispute the charge on your credit card immediately.