Guild Wars 2

To reduce gemstore buyers dissapointment/remorse, allow a few gemstore refunds a month for items bought within that month.
Or do a 30 day refund satisfaction guarantee per item bought.
May apply to some items only (opened dye sets or used keys wouldnt work).
Or allow full preview and a try-out area for most things.
Whatever things to make gemstore items not feel like a gamble.

This would be nice, but getting a refund will never happen as Anet will view it as a loss in money. A better suggestion would be an item exchange, item A is exchanged for item B (same or lesser value).

However, as people say every time I suggest something like this, the fact that skins are unlocked for the account when you get something would prevent this. Which I think is a dumb excuse because they could just remove the skin too.