You cannot resell them on that site if your plans change. You have to use another site. None of that is made particularly clear in the fine print. There is an offer for a refund of some kind - I guess bank the price of the ticket less the $100 (!) in fees? Hard to tell. But a couple days before the event, when you realize it won't sell is too late to get the refund. So you don't really have time to re-sell. You can be on CHAT with them twice, and they won't warn you. Predatory business practices; buyer beware!