Disgusting service

3years ago I went to Planet fitness to view the gym and enquire about joining. The man that was helping me explained everything and even made me fill in the form. I told him I can't sign as I'm not sure if I want to join yet. He told me I can sign as I have 5 days to decide and can use the facility in those days but had to pay a R125 for an access card which was refundable if I decide not to join. I paid the R125 and never went back to the as it was far from where I lived.In that week I called from work asking to speak to him and left a message that he needed to call me back which he never did. On day 5 I tried calling but the line was not answered. I then got very busy and forgot to call back again. Monday I called again and asked to speak to him and he told me it's pass 5 days and that I will be penalized for canceling my membership. I told him I tried calling him and left a message he told me never received it. He wanted proof if calling which I gave him the number for my office which appears as a private number on the receivers side. He told me he will investigate. Next I get a call from someone who asked me for the time date and number I used. I gave the details but wasn't accurate about the time of calling. The lady told me it's going to be difficult to trace if it appears private but will try. I called the man again he told me there's nothing he can do. I asked to speak to his superior and he wouldn't let me. Everytime after that when I called they kept saying he's not available avoiding me. Whoever was at reception already knew my name and always said he's not available. Now I got an email from lawyers owing Planet Fitness over R11 000. All my communication and proof is down the drain as I was using company laptop, phone etc.