If you have no idea how you can deactivate Kik then, all you have to do is look at the below-mentioned steps of the same:
1.Visit on this page - https://ws.kik.com/delete and enter your credentials.
2. After filling your credentials, also enter the reason for leaving and tick the box.
3. Click on "Go" and now you will get an email from kik.
4. Open it and click on the "Permanently Deactivate" option.
That's it now your kik account will be permanently deleted.

Also Read - http://onlinegeeks.bravesites.com/entries/email/how-to-deactivate-or-delete-your-kik-account-without-email-

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