Double debited my account

I recently signed up the vitality gym membership contract, this was supposed to be effective on the first of November, so I didn't pay my normal November fee when is was due as the consultant i spoke to said that I should come back in November and sign the vitality contract of which will be effective from the 1st of November. To my dismay when I went back I was told that isn't the case and that if I sign up in November my vitality contract will be effective the 1st of December, and that I still have to pay the full November fee. I had an issue with this, but after days of going back and forth I was finally assisted by Lerato at the Hatfield gym, she was really of great assistance and also helped me a lot. She apologised about the inconvenience I was caused and she also organised that I pay a 50% discount on my November fee (of which R320 was debited on my account). Now my problem is that even though I paid the R320 (November arrears), the activation fee of R1330, and the R112 for December my account was still debited with and additional R1260 (R630 for Dec, R630 for Nov), like what the hell? No response from twitter or emails I sent. can't get through to the callcentre