Vacation Tree Inc. Timeshare advertising sale/rent of timeshares Internet, Internet

We got a call from this company out of Florida. They had buyers ready to buy our Royal Elite timeshare. We paid an upfront fee of $598 expecting to hear in the next day or so that our timeshare had been sold. So far, we have not received on phone call back. When we call them, they are not available to talk. Please check out these "people" thoroughly before giving them any money. They are very convincing. There should be a law that the money should be returned since they represented themselves in so many ways