Discovery Health Protector Plan - Warning

I have been bombarded with unproportioned premium increases on all my Discovery Live products, many of them Discovery don't sell anymore, go figure. One such product is the Discovery Health Protector. I've asked for a reason why the increases jumped to 15.02%. Their reason was ...they have to align premiums more closely to the expected future claims experience.... and it gets worse exponentially as one gets older, and the compounded effect will make it unaffordable very quickly. That is no reason because if it was then we could equally reason life has become to hard, we will pay you less premiums. Besides that: I've asked them strait, a) where does it state you are allowed to do so (else I would never have opted to buy this) b) How and when did you tell me you could do this (because if you had, I would never have bought it). c) Are you doing this equally to all that has this product, or are you targeting folks individually (I suspect every one gets a different increase depending how invested you are e.g. vitality levels). I think it is a real and dedicated act from Discovery to get rid of folks that has realized their game, and they will force you out with premium increases. I have been searching if I were the only one and was pleasantly surprised there are quit a few that are unhappy. I would like to get a critical mass of like minded customers because I think we have a real case to stand on against this. Let me know in a way that you can.