SWTOR (I think? It's been a while) allows you to sell back items, within a particular timeframe of a couple of hours, that haven't been bound/used, for the amount of currency/tokens paid. Give us that. You have checks in place to see if something is spiritbound or melded, so if it's not either, just let them return the item (i.e., a Rabanastre coin for your roborant, or 375 mendacity for that ring you now have two of.) It would cut down on the number of people needing to contact GMs for lost items to people who actually lost the item, not just "bought the wrong thing." And it's not like you can use an item and then get your money back. Even Fashion Report binds the items, as does glamming with them.