Remove Accounts Completely

 

Goodwizz was a social network service website based in France. Users had an option to use their Facebook credentials to sign up and log on to Goodwizz. The site seems to be down since mid-2012

 

How to Remove  accounts

1. On a computer,visit foursquare.com/settings.
2. Click on the “Privacy Settings” tab in the right sidebar.
3. Scroll down to the bottom of the page and click "delete your account.”
4. You'll be taken to a page to confirm the deletion of your account.