Unpleasant treatment from Edgars

I have been an account holder for Edgars for more than then years, never had any problems until last year,I have been disappointed at how i have been treated as a customer for Edgars , i have tried finding help , I’ve sent emails ,but not even once have I got a response , i have failed several times , it started last year around October when i received a notice that i was behind with my payment, i went to the Edgars Eastgate to inquire, no one was willing to help as i was told it’s Saturday, head office doesn’t operate on weekends, they wrote a number on a piece of paper for me to contact them directly , but I could not call the number, few months after I went to Clearwater mall, explain my problem ,lucky the teller tried her best she called the department, I spoke to them and i was not happy with the answer i got , i later went back to Eastgate Edgars, i spoke to the teller , she immediately called them , when I asked why do my monthly instalments keep changing ad according to my knowledge, i have always paid more than my monthly instalment , i was told it’s because of account interest, however i also discovered that I was being charged 25 rand airtime every month,of which I have never received and that has been happening for years, but and some club members amount for jet account, I would like to have a refund for the airtime they are charging me for.my account has been handed to debt collectors, yet they have also been billing me for airtime im not even getting, I need someone to contact me very soon .