WordPress URL Changed to wrong address

Hi @lekisha – Take a look at Login Trouble article in the codex:
http://codex.wordpress.org/Login_Trouble
or the Changing Site URL article in the codex:
http://codex.wordpress.org/Changing_The_Site_URL

All the best 🙂

The wp-config file will be at the root of your WordPress installation, on your server, which you can access through FTP or C-Panel/file manager.

If you are a beginner at WordPress the codex, although the most authoritative guide to WordPress, can feel a bit overwhelming – take a look at this guide to editing the wp-cofig file by WPMUDev, I find it breaks down some of the ‘hard to get your head around’ concepts: http://premium.wpmudev.org/manuals/wpmu-manual-2/creating-and-editing-your-wp-config-php-file/