I see some of you like to live dangerously 
Miss click, sell a bounded item to the vendor and then buy it right back is the best case scenario.
Maybe just consider the case when you realize you lost your item the day you actually needed it. Manual deletion should have been prevented by a warning pop-up. At that time it’s not in the buyback window any longer. So, if it’s not in the bank, it’s lost.
Going through a lost item petition is a pain.
If you get your item back, it may be the same quality. But the amount of XP already empowered is not logged. So, the item is given back at level 0.
Then, there is the update to customer service policies, which increase the risk of not getting any answer to your petition at all.
Why not reduce that risk with a simple warning on valuable stuff ? 