Neglected current discovery vitality members

I am a discovery vitality (DV) member for two years now. The other day I went to Virgin active (VA) to join using the current joining fee special that is running and I was told I do not qualify then I asked what points or do I have to do to qualify then they said it's for new members only which just joined DV. I feel DV is neglecting current members and forcing us to join at VA the max rate, and us people who been loyal to DV can't access these discounts how is that promoting healthy living. I would also like to point out when I joined there wasn't these type of specials so DV is making me nd many other members suffer for joining at times where there is no promotion.