You can get the site back if you change the WordPress address & Site address back to their original settings using one of the methods outlined at http://codex.wordpress.org/Changing_The_Site_URL
The domain you wanted to change this to is showing as not registered in a whois lookup. You will need to register the new domain & have it configured to point at your site if you want to use it. I removed that unregistered domain name from your post for obvious reasons.
I tried that, but I can’t even get access to uabama.com since I changed it to the other domain. I understand now that the new domain I inputed wasn’t officially registered, but I am no longer able to gain access to the old domain.
You’ll need to read the article linked above and use one of the methods to change those back – there are several that don’t require you to login but you do need access to the site files using FTP or to the database. I think the functions file method works well –
http://codex.wordpress.org/Changing_The_Site_URL#Edit_functions.php
Looks like the site is on DreamHost – so here’s info about using FTP there:
http://wiki.dreamhost.com/FTP
I downloaded FileZilla and attempted to access the site using FTP. This method did not work either.
Is there anyway I can contact support directly; so I can have the domain amauab.com payment cancellation and site shut down?
This is the only support offered by WordPress.ORG, but WordPress.ORG does not sell or charge for anything, so I’m not sure what you mean by payment. If you paid for a domain registration, it wasn’t through WordPress.ORG. Was it, by chance, through WordPress.COM? (That’s totally separate from here.) Or if it was through DreamHost, you need to talk to them about it.
Have you asked DreamHost for help with accessing the site via FTP? They have good support.
