Are you trying to buy through them or sell through them.
Can't say I have heard of them. Even so if they are offering to buy your timeshare or sell your timeshare or rid you of your timeshare in anyway, I would look for other options. In all likelihood it will involve a high upfront fee and if they say they will sell any then reimburse you, they won't, they will just disappear. If they say they can dispose, they may or may not.