Family fitnes wrong business marketing strategy

Family fitnes gym employees sales agent which they market their business on the malls and shopping centres. They provide people with wrong information asking you to join telling you that if you don’t like it you can cancel it within a month period. Later on that one I went to the guy then realise that is not for me and also I moved to another province I called then and tell them that am no longer interested in a guy they said is okay four years later I started getting calls from family fitnes collectors wanting me to pay R4600. When I tried to explain to them that I was wrongly advised I even told them where I joined them they didn’t take my story. They tell me is not theyre problem what I should do is to pay or face to be listed. Four months later they listed me.