Sparkle , Honey.
STEAM is really kind of the most annoying thing in a while. Still can't figure out what the point is.
I had the same problem. You have to look for ADD A GAME. Then you ADD the game. Very confusing.
I had to do that.
Good Luck. caz
It's just another digital distrubtion system for games. It has been around for many years now, it was one of the first. If you prefer to download your games as opposed to buying them in store, it's just another option. Some games like any made by Valve require Steam as well, so you have no choice.
You would only ever need to add a game manually if you didn't buy it through the Steam client itself.
I'd always recommend having an account first and buying through the Steam Client. So create your account, login and then using the Steam client make your purchases. That way your games are in your library the instant you complete the purchase.
You can buy some games from other places and register them on Steam and then you have to add the serial number, but that doesn't come up too often.
As for Steam support, 24 hours and no response is not out of the norm for their support. It can take a while because they receive a lot of requests. There are over 3.4 million people on Steam right now as I look.