How to remove your Sonico account
The removal option from the menu is unfortunately quite unclear. It’s called ‘close’ (including removal of your data), ‘deactivate’ and ‘suspend’. However this is merely deactivation. For that, try this link: http://www.sonico.com/cancel.php
Helpful Trick: Removing online data
Helpful Trick: Remove third-party logins
If you signed up for Sonico using a third-party login such as Facebook or Twitter, you probably want to revoke all access from Sonico. Click here to find out how.