If you don't want this timeshare any more you're golden. But assuming you do, I figure it will be very difficult to get hold of someone at Wyndham who would have the knowledge and expertise to dig into this and fix things. The only suggestion I have is to immediately send a certified letter to the highest Wyndham officer whose name you can find, letting him know that stealing your property is illegal and you'll wait about 1 week before initiating legal action.
There was a thread earlier referencing the Florida department that handles timeshare complaints. I would send them a carbon copy of my letter
Division of Florida Condominiums, Timeshares & Mobile Homes
400 W. Robinson Street, Suite N-908
Orlando, FL 32801
407-317-7226
I'm not one to overreact, but I'm thinking this is a problem that needs a quick solution or it will only get worse. Good luck.