I'm not aware of a promotion that gives a free website for a year (I could be wrong, though) but I do know that you can get a free 30-day trial of GoCentral, which I think is what you're talking about. You can get that just by going to the GoCentral section of the main site and setting it up.
If that's not what you're talking about, I'd give support a call or hop on a live chat and ask some questions.
I am a GoDaddy End User - Just Like You Check out my site! | I drink and I know things. Especially about websites and web hosting. * Please note that I offer free advice on this forum. If you would like personalized help, please contact me. Otherwise, please ask your question in the proper forum so the answer can assist EVERYONE in the community and not just you. Thanks! *
Once your issue is resolved, please be sure to come back and click accept for the solution