My internet works fine. When searching and browsing for stuff but when I go on to WhatsApp or Instagram nothing loads unless I turn off the wifi on my phone, all the other apps work fine
Have you gone into your online NOW account and change the NOW Broadband Buddy settings from default PG13 to a different age rating ?
If changing your NOW Broadband Buddy to something like age 18 doesn't help.
Then a couple of forum members had success going into the NOW Hub Router webpage settings and disabled IPV6.