Vitality points inconsistancy

I have been a member of discovery for a while. I truly believe in the brand however I have found myself in a position where I am forced to air my concerns on this platform. I regulalry check my vitality points online as well as on my iphone app which I downloaded specifically for that reason and since I have a suite of products with discovery due to their reputation. On the 6th November I checked the points required to maintain my diamond status-and this reflected as 5600. On the 26th November, haveing completed a fitness assesment which would have given me the required points, I checked again only to notice that I need another 8000 points now. (screenshots sent).On contacting the call centre they have advised that it is because my status changed from staff to member at some point. All good and well however, is it not the same innovative discovery that ought to ensure that the information on our pilicies is accurate at all times? I travel all the time and it did not occur to me that the onus was on me to do this for them. Its december and I still need 8000 points-can discovery tell me how this is possible? on average I go to gym 3 times a week as is and have done my assesments