@wayne12eee live chat on the link
https://help.nowtv.com/article/how-to-submit-a-complaint
Email address listed in a number of places but for reference it's
customerservices @ nowtv.com (ensuring no spaces)
If you want to request your details removed from their system you may need to do it in writing via the privacy department at sky.
dp.department @ sky.uk (ensuring no spaces)