Hi @Anonymous User
While you should be able to cancel using any device which has the capability to access the now TV website. I would always recommend that cancelling is done using a laptop PC, desktop PC or Mac and not a mobile device. For one thing, it's much easier to see what you're doing on a PC. Be aware that the web browsers used by mobile devices can sometimes contain limitations which can prevent aspects of some websites from working properly. So if you're managing an online account. It's always best to use a proper computer.
To cancel now TV go to the my account button near the top right of any page on the website and select 'my passes' from the list then click the cancel pass button next to the appropriate pass. Remember each pass type needs to be cancelled separately.
After clicking cancel pass you will be taken through a series of dialogues. Follow the dialogues clicking the appropriate option each time. Once you have finished your get a notification confirming that the pass you have selected to be cancelled has been cancelled and you will no longer be charged for it.
If you need further assistance you can contact live chat. To get to live chat click here. Then scroll down to the bottom of the page. Click "contact us" and then click "live chat"
With regard to subtitles, you may wish to have a look at this
https://corporate.sky.com/media-centre/our-blog/2016/extending_our_commitment_to_subtitles_on_demand
Hope that helps
