VIRGIN ACTIVE - BAD SERVICE ignoring consumer rights as well

It is extremely frustrating and stressful dealing with Virgin Active, the entity that almost monopolises the fitness gym industry. After upgrading to a Premium membership (call center) where the VA agent proposed that I do so (at 75 percent vitality discount) to solve the problem of my daughters club swimming at Gatesville VA, I discovered that my 11 year old daughter still had local membership. The nightmare began when I attempted to align her membership to mine (upgrade). Almost a month and about more than a dozen calls later, this has still not been effected. In the meantime Virgin Active has doubled my payment- saying the 75 percent discount was a mistake etc. This is wrong on so many levels.. legally and contractually for starters - the contract terms and payment obligations have been changed unilaterally, my daughters membership has not been upgraded and if I don’t pay then no access. The swimming club is a great community development and grassroots one without the luxury of their own facilities and dependent on VA to advance their developmental aims. I am in a catch 22 situation in a typical South African dilemma. They have promised to investigate and also send me the recording of my interaction with the call center agent and this has not materialised to date. VA definitely not people centred anymore and the customer care and satisfaction is pathetic. I have had unbroken gym membership since the Health and Racquet era and my daughter had heritage membership (no payment) and even this latter aspect was changed. How do they justify having different memberships for my minor daughter and me.. must she go play in the traffic when I opt to gym at other clubs?