Robbing clients

I joined virgin active in June 2015 , I am on discovery medical aid so my premiums is suppose to be lesser monthly.First month they deducted R 530 and the guy who helped me with the contract said from going forward I willing be paying R 199.But second and third month they kept deducting R 530 I called virgin active and was told to call customer service , which I did and was referred back to Mall @reds.I sent an email to ask for my membership to be cancelled only then I received a call to date I am waiting to be called back. Today I went to the gym to find out what is happening and how far the process is only to discovered my membership from the start was normal membership and there is nothing that can be done to change it and I must pay R 4665 for it to cancelled. I have been taken for a ride and **** to now my credit score is suffering .Bunch of useless staff I ever came across!!!! Contract was never emailed to me because my email address is wrong in their system, so disappointing.