Poor Support for Vitality Apple Health Linking Issue

My Vitality points have not updated for the past three weeks. On the Discovery app, I am unable to link Apple Health, which is preventing me from earning points. I have called and sent multiple emails regarding this issue, but I have not received proper assistance. Some consultants even promised to call me back after a few days, but no one followed up. The email responses I receive are automated and state that the issue has been resolved yet nothing has changed on my side. This has become very frustrating, and I no longer know what steps to take. It feels as though the Vitality programme is not working as promised, and I am extremely disappointed.