If you decide out, the FTC suggests you send a letter via qualified mail or hand-delivered with a signed receipt. In addition, make sure to keep records of any correspondence and who you talked with, the FTC says. If you want to trade to another resort, you need to know how to do so.Otherwise, you'll have to go through an exchange business RCI is the most prominent where you'll have to pay extra membership and exchange fees. And even then, you're not guaranteed of getting the exchange you want. Even reserving time at your own timeshare can be hard because lots of timeshare resorts are moving away from fixed times.