So when someone goes to a guild trader and gets a list if someone buys the item before he does it shows a message at the top right that says could not find specified item and the money is discounted but never returned it appears at the bottom right with the quantity you paid as if it was returned but it is not.
This time 2 platinum platings and they have not given me back the money, they told me to fil a bug report, so i do it but i already did some weeks ago, the other times it was more easy they returned the gold coins in a few hours, they say they will get to the bottom of this, it is half a small house so I hope they end up returning it.
I cannot provide screenshots because it happens in a moment and I am never ready for it.