My Steam Account Was Hacked Unexpected Item Purchase

I am absolutely outraged with Steam! My account was used to purchase a "Pikselli Dragonus Decoration" item from the Steam Community Market for $9.81, completely without my knowledge or authorization. This transaction is absolutely not mine, and to make matters worse, I never received any notification email about this purchase. What's even more concerning is that Steam Guard was active on my account when this fraudulent activity occurred! This means your security measures failed, and my account was compromised.

This isn't just about the money, though losing ₺ is certainly annoying. The item itself was only $0.03, yet I was charged $9.81—this suggests a serious exploit or scam facilitated by your platform. The fact that a purchase could be made without my approval and without any email notification, all while Steam Guard was active, is a massive security flaw.

Steam, you need to rectify this immediately. I demand a full refund of $9.81 to my Steam Wallet and for the unauthorized item to be removed from my account. If this isn't resolved promptly, I will not hesitate to file a formal complaint. This incident proves a serious vulnerability in your system, and I expect you to take immediate action to protect your users and their funds.