You'll be waiting at least 3 to 5 business days before they respond to you. And all they will pretty much tell you at that time is that accounts are disabled either due to billing problems (you didn't do a charge back did you?) or to prevent hijacking (either of your own account or others -- your email address attached to Steam doesn't contain words such as valve, steam, admin or VAC does it?).

Like I said, in the last two months I have deleted the demo of Arkham Asylum. I also use a debit card.
As for Hijacking... it's possible but very unlikely. My password is very unique and the username is uncommon. As for VAC I dont even play Steam games online. Last I checked my VAC was in good standing.

I have had issues with Steam and I have uninstalled and given up on it months and months ago. One of the best things I have done, and it is simply not worth the hassle.

It doesn't matter if you play VAC enabled games or not; that won't get you disabled, just VAC banned. But if your email address contains any of those phrases, your account may be disabled to prevent you from trying to hijack others.
So, if you haven't accepted any gifts that were made with stolen credit cards, haven't done a charge back, haven't used a stolen credt/debit card, haven't tried to hijack someone, you should get the account back.
Of course none of this excuses Valve for being incompetent. They really should be hiring people to cover support over the weekends. But they're simply too cheap to do it.

At least when you make love to a beautiful woman, when the inevitable happens later, the nurses and doctors will give you good advice, including why such an incident happened. Not so with Steam.

I don't think that's the cause.

If that's what you want to believe, then go ahead.

Yes, basically talking/listening to their customers seems to be a big fucking no no over there for some strange reason ;)
In all fairness, they do actually say that right upfront. It's pretty much what's stated in the SSA, once you manage to actually get a grip on the legalese.
You'll probably get your account back on monday, but like bansama said, there's absolutely no excuse for them not having support on the weekend and more/better support during the week, specially considering the obscene ammounts of green rolling into valvEA's HQ.
On the other hand, if they're actually trying to come up with any sort of story for EP3, one that can account for the goings on in the series and provide some sort of...'ending'...at the same time, i can see how they could be strapped for cash, as that would probably take an entire legion of top knotch writers...

after ep3 im done with valve and steam...
the only shred of decency and love is Audiosurf... if i could finsd away to play that outside steam or somehow buy a standalone version i would uninstall steam and never look back.. screw ep3 i don't need it... took to long and i stopped caring about Gordon Freeman long ago...
Black Mesa Source is the only thing im looking forward to now.

If you didn't do anything listed as a ToS violation then it might just be a simple case of disabling the account because they thought it was hijacked, or because they thought ownership had changed.
I don't know what methods they use to find these things out, but they do. Not saying you did them.
I have issues with Steam as well and hate using them, but often it is hard to avoid the temptation because of sales or early access to games, as I would have to wait on amazon mail otherwise for the most part.
I justify it to myself that digital distribution and account-based gaming is inevitable, and there is only so much reason to fight it.

I have been using the same account since 2004, I have never accepted a gift, I have never given anyone my log in details.
Believe me this came out of the blue. I was going to check the weekend deal when I was told my account was disabled.
Quite frankly I couldn't give a flying fuck what Steam's EULA is. The fact is I will be seeing a lawyer tomorrow as they are the only people who speak Valve.

Moral of the story is, buy retail unless you are comfortable with making backup discs of all your titles (Which can be done with GOG and Impulse), and in general, avoid Steam.

However they want. Allegedly, they *only* ban accounts for hacking/phishing/piracy/billing issues, or when an account is hijacked. Supposedly the last two are only temporary, requiring you to fix the billing issue for the former, and contact support for the latter and they will change your password.
STRESS on the word "supposedly". Unfortunately, even though Steam markets itself as a gamer-friendly utopian vision-driven company, they are nothing but a near totalitarian corporatist entity, essentially renting games to you at full retail price.
I feel bad for anyone with "a lot of games" on Steam...I have 130, and I feel like a victim of a con artist. It has actually decreased my motivation to play those games, and I am considaring taking Steam to court.

Simply put; you're over reacting. Especially given the fact that you know support don't work on the weekend. Chances are very good that they disabled your account because they felt someone was trying to hack into it and disabled it as a preventative measure.

That is an extremely poor excuse for disabling access to all my games. You also forget the time I sent the complaint which was 11am GMT. They had all day to at least acknowlede my complaint, they chose not to.