Check the contact e-mail address for your Steam account to see if Steam Support has contacted you regarding the reason your account was disabled - accounts may be temporarily disabled pending verification of purchase information or account ownership.

We have a zero-tolerance policy for any violations of the Steam Subscriber Agreement and Online Code of Conduct - we will permanently disable all accounts in a user's possession for any of the following activities:

• Piracy or hacking: This includes using an unauthorized ("hacked") Steam client to access Steam, attempting to register fake CD Keys, or attempting to register a CD Key which has been published on the internet.
• Credit card fraud: Any fraudulent credit card use or credit card chargebacks (regardless of when the transaction occurred).
• Hijacking, sharing, or trading accounts: Do not use Steam accounts which you did not create.
• Account "phishing" and deliberately deceptive activity: This includes contacting other users outside of Steam or over the Friends network under a misleading screen name or e-mail address (i.e. "Steam Admin" or "John@Steampowered.com") and requesting password or account information.
• Buying, selling, or trading accounts: The use and security of your Steam account is primarily your responsibility - accounts which have been bought, sold, or traded will be permanently disabled.
• Any other violation of the Steam Subsriber Agreement or the Rules of Online Conduct - Please see the Steam Subscriber Agreement and Online Code of Conduct if you have any questions about the policies which govern Steam account use and account termination.