Vitality - No service to resolve my issues

I have an issue with my Vitality profile. Since joining vitality in December 2018 after using the Open platform, I am unable to view my Activity history on the app or the website. I have logged numerous calls via the call centre and email, but no-one is attending to my problem or coming back to me with any feedback. I want to be able to see where I am getting my points and where I am not. I have screenshots to show that I always get the same error. The points are adding up, but I cannot review the history. My wife is able to view hers, as well as colleagues and friends on their devices. The helpdesk agent told me it was a known problem and did not assist. One person called me back to say I should update my app. I have updated my iphone software and app, and removed and re-installed the app. The problem also exists on the website, so it is not my phone. No-one has come back to me with any valid reason for this. How many more calls do I need to log? I am unhappy and dissatisfied with Vitality service since joining. Even after getting angry swearing at the call desk agent - I still get no feedback.?What does it take?