@Anonymous User
Welcome to the forum. If you were entitled to a free trial it should have let you have this before charging you afresh the free trial ends. If you've had a free trial in the past either on your current account or a previous account that would stop you getting it again, as would someone else in the family having a free trial using the same payment card.
If that doesn't apply to you try having a word with live chat and see if there's anything they can do for you.
To get to live chat, go to the following help page and choose the live chat option.
https://help.nowtv.com/contact-us/how-do-i-cancel-now-tv
