Hi @Anonymous User
Some of the more common reasons are multiple nowtv accounts, not going through the complete cancel procedure online when you cancel each pass separately (there is approximately 4 to 5 steps to cancel a pass where normally you will receive an email cancel confirmation from nowtv), somebody who has access to your devices (such has kids, family members, friends etc who has bought a pass without your knowledge (always recommend to add a Payment Pin to your account).
Anyway you are better off jumping over to live chat for assistance & help with regards to this matter.
Link here to live chat.
https://help.nowtv.com/contact-us/managing-my-devices
