Thanks for working your magic, just a pity the others didn't just use your approach rather than asking a series of questions that had no baring on getting the issue fixed.Thanks again.
Paul, what kind of black magic did you perform?!By clicking on that link it took me straight to the priority page without the need to log in.Tried the app and that seems to be working again now too.What did you do that all the others didn't?Whatever ...
The O2 app is version 9.1.7.Signed out of My VM app and tried to open the priority app , as expected same thing popped up.I don't have a different device to try it on and even if I did that's kind of pointless because I want it to work on the device ...