Same issues here.
@Spacedeck @Anonymous User Hello 🙂
Have a read of the "fix issues on ps4" section of this page:
https://help.nowtv.com/article/Buffering-All-devices
If it doesn't help, then select "contact us" at the bottom of the page. You will then see a "live chat" option to speak to a team member.
Best on a PC/Mac. 🙂