Terrible service and misrepresentation

Unfortunately, I have to complain again about Planet Fitness. After requesting the cancellation of my contract, effective 1 March 2015, and being told that my account was up-to-date, I was contacted yesterday by a debt collecting agency informing me that I owed PF money. I was very upset as PF had charged me club fees (which I am not liable to pay) and a cancellation fee despite my contract terminating automatically after one year. So I thought that this outstanding amount was for the afore mentioned reasons again, however, I was informed that they wanted to collect R30 from me. I immediately said that it was a mistake and I have a statement to prove that I owe PF nothing. I called PF to find out what was happening and I was informed that I owed them R30 for an increase that was put in effect on 27 Feb 2015. I paid my contract a year in advance (I paid at the end of Feb 2014 for 1 March 2014 until 28 February 2015). For the latter reason, I do NOT see why I am liable for this increase as my contract would terminate the next day. <br> <br> Please get this sorted out and cancel the increase which I am not liable for. I am sure what PF is doing is not legal. Further action will be take.