Vitality App Not Working for 4 Weeks. Call centre not responding or resolving my problem

The Discovery Vitality App has not worked on my Android phone for 4 Weeks. I have downloaded the latest version of the App. I have logged more than 5 calls with the Vitality Call centre. I'm sent from pillar to post and have been transferred to a manager "Charles" on 3 occasions with no answer at his desk. The rest of the times the issue was escalated to the next level desk. I'm yet to receive feedback. I have lost most of my rewards and cannot monitor any activity. This is extremely poor of a company that a recently lovely my and me wife's entire portfolios to. Hope someone can call me to resolve.