Well you clearly didn't look hard enough, as the first post on the search result list was a 15 paged thread that covered absolutely everything on it.
This is the last time I answer a question on refunds here.
Nobody in Era's staff team has the power to allow refunds of any kind. I can't, Snk can't, none of us can. Snk has wanted refunds of a kind, but he can't because Unixmad is the one who decides (owner of toonslab/eurocenter, basically graal).
He doesn't want refunds, because, yes, it would limit the profit he receives, it is more or less understandable why he doesn't want refunds, as guns are the main source of currency and he is the one making profit from the game (none of our staff team does). It would be like a boss of a company asking an employee if they want to have a pay reduction, obviously they will say no because they will get less money.
The era staff team isn't exactly opposed to refunds, I will say gun trading and 100% gun refunds would be a bad idea, but refunding for a % like 40% wouldn't be too bad, but again it's not up to us.
It is pointless to keep making threads asking for gun refunds, when it will never happen. These threads have been made for 4 years, and no matter how many time you ask, that decision will not change.