No text notifications after iOS 8.4 upgrade

Hi all,

Help please. I have the iPhone 5S. When the "effective power text" bug was identified I took the advice given and switched off text notifications. I have updated my phone today to iOS 8.4, this update included a fix to the bug mentioned. The problem is even though I now have phone notifications on I am not receiving any notifications that a text has arrived. I have rebooted my iPhone, closed the message app and toggled the notifications off or on but nothing is working.

Any ideas?

Thank you.