Kankari does not use accounts — there is no username, email, or password to delete. Depending on how you played, here is how to remove your data completely.
All of your data (preferences and saved games) is stored on your device only. Uninstalling the App removes all of it. Nothing is stored on our servers.
Online play stores a random device identifier and your match history on our game server. To have this deleted:
Deletion removes the device identifier, presence records, and match history associated with it. This cannot be undone.
Anything unclear? Contact connect.itmaster@gmail.com.