Hi, everyone! So, I suspect I've had 10 of my Mann Co. Supply Crate keys disappear from inventory. It was 57 keys this morning before I left home and now it's 47 keys. I haven't got any extra trades in trading history and I'm pretty sure that I'm not suspecting this by mistake, because I took notes of the amount of my belongings in a notepad before I left. I've been trading a lot these days so is it possible that one person (or more, but since it's 10 keys being lost at once, it's more likely to be one person) that I have traded with gave me keys that were purchased using fraud method which led to Steam deleting them from my inventory? I've created a support ticket but I'm not sure if they will ever respond to this one since they still haven't responded to my last ticket about a similar problem (items being revoked). Have this thing ever happened to you guys? If it has, did support help you to get your items back?