VERY VERY BAD SERVICE

I had a 1 year account that will expire in 2015, due to the bad service i decided not to attend the gym anymore since Oct 2014. I had a family member accompany me to the gym at the cost of a R100 extra,I completed the debit order and left it at that. on 2 convective months I got told that my account is in arrears (I confirmed eventually with the bank that no debit order was received). I was handed over to a debt collecting firm, I paid the R681. After submitting a request/complaint regarding the matter to the client service center, I received an automated response and nothing after that (Request/complaint was send on the 27th of Jan 2015). Today I received another call from a debt collecting company demanding R901. I still got no response from PF regarding this matter.