I want to explain my situation as clearly as possible in hopes that someone from Steam, or anyone who has been through something similar, can help me. I simply want my account back.

My first Steam account was recently blocked/locked for reasons unknown. Steam Support told me it was because my account had supposedly been accessed by someone else. However, this doesn’t make sense to me, because all login information shows only my own IP and location. As far as I can tell, I was never hacked, so the account appears to have been locked for no reason.

I contacted support immediately. I explained that I am the real owner and asked them to unlock the account because I just want to play my games. Their response shocked me: the only way for me to prove ownership, according to them, is to provide the original CD key used in 2004 when the account was created—along with a photo of the physical box. I obviously don’t have either of those after 20 years.

What makes this worse is that I have every other possible form of verification:
• I have the email
• I have the phone number
• I have Steam Guard active
• I have the credit card connected to the account
• I can log in normally at any time

In all my years on Steam, I was never once asked for a CD key to prove ownership—not when I changed phones, not when I lost access to my authenticator, not when I forgot my password. Email verification was always enough. I’ve sent support multiple screenshots proving I’m the owner, along with every detail i could think of, but they keep refusing everything and insist I must provide the CD key from 2004.

They also claimed they “suspect the account has changed owners,” which is absolutely untrue. I’ve never shared my login details with anyone—not to let someone try my games, not for any reason.

The only unusual event in the past 20 years happened about four months ago. I received notifications asking me to confirm market listings I didn’t create. When I checked, I saw two unknown logins from completely different countries. This was shocking to me, since I always believed Steam Guard prevented unauthorized access. I still don’t know how someone got in. I have never shared my password or account information.

I reported this immediately. Support reset my password, logged everyone out, and since then I’ve kept the same password—it’s still the one the account uses today. That was the only security issue I’ve ever had in two decades.

So now I’m stuck. I can’t find a 20-year-old CD key, and support refuses to accept any other proof of ownership, even though I have full consistent login history, personal information, and account access. I’m being locked out of my own account simply because I can’t provide a physical CD key from 2004.

What guarantees that if I create a new account today, I won’t face the same situation 20 years from now? It feels unreasonable that a decades-old CD key is the only accepted proof of ownership.

Note this is not made, to disrespected steam or anyone,
It's just made if anyone suffered similar thing or someone more knowlegable to help me