You will need to contact the owner of the channel to transfer the ownership before you can make any changes or delete the account. Hope this helps clarify.
If your the owner of the organisation, you can file a privacy complaint using these steps: https://goo.gl/fkVCz1 . Hope this helps!
-
-
This Tweet is unavailable.
-
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.