It's the Waiting Game

I created a web site for my online business two nights ago, I was told it would only take up to eight hours before the server would bring it up. They were wrong, two days later I am still waiting to get o my site. It is getting very nerve racking. There are things I need to get done but I can't get to my OWN site yet. I followed all the instructions to a T, so I have no idea why it's not working yet.