Virgin Account

I wanted to join a good quality gym to fit my needs, so I decided to see what Virgin Active can offer me. I spoke to a sales agent and he gave me an excellent offer (at that time). He asked me what my previous gym fees were so that he can work out a plan. As we discovered that I am a member of Discovery Health my monthly payment will be R175, and if I join Vitality it will drop to R135 (his words). So I joined and signed my contract as this is much less than what I paid at the previous intuition. I only have to pay R1300 as a once off membership fee, that will go off as a debit order. I paid R175 in the shop on that day as well. The first month the debit order went off for R530, second month for R530 (as I thought they break off the membership fee in 2 halves). But this month I paid R530 again!!! So I phoned them, just to find out that my monthly payment is R530, so he tells me I have not paid my R1300 yet.... How is this right?? On the phone he tells me that there is nothing he can do for me, I have to cancel my contract. I asked to speak to the manager, he/she is not there he tells me. So I said I am expecting a phone call from them. And still nothing..after 4 days now