Virgin active Sunnyside *********** staff and lack of investigation to queries

I had a virgin active gym membership in 2014 and I paid every month for it.. One day I went to the gym and I was told I couldn't access the gym and I needed to come speak to the manager, I went there several times and and that time I was still getting debited R250 every month, I spoke to the manager, he told me there's ***** on my access card and I needed a new one and I asked if they will be refunding me my money for the previous months sep-dec and he said my account wasn't supposed to be debited in the first place, it was supposed to be frozen while the issue was being investigated.. I told him I was going home as I was in university and I'll be back in January, hopefully the matter will be resolved by then but I never went to Pretoria but I followed up onlu to find out Virgin active says I'm in errears so I asked for my credit for the previous months and they told me to pay them, I ended up telling them to use the money they owe me to pay themselves. Now I'm getting harrasment emails to pay or be handed over.