Customer account complaint

I've been with Edgars for more than 25 years. I always paid my account on time even more than my premium. In 2014 I had some problems and needless to say they stopped my clubcard and credit and all my benefits. After a couple of months everything was fine and my credit to use available, although a lot less. Until April 2019 I've NEVER received any statements and I used to just to pay what they tell me what's outstanding, normally paying everything and keep my account in credit, question in April the anount after they phoned me and send me a very nasty message. I've been to the Canalwalk store in December 2018 after almost hours waiting for someone to assist I paid the R400 they said that was all that was outstanding. I confirmed if it was all and they confirmed. So it was a major unpleasant surprise. I've explained to them rhat I've been told I don't owe anything and also request a statement. I was so surprised to find out that for the past years they had my correct email address, but never send me a statement although charging me admin fees, clubcard that they deactivated in 2014 and that was confirmed deactivated when I was standing next to the road and needed roadside assistance and also when I want to use my card at the movies. The 'recording' to activate the card made the first time when I just opened the account many years ago before Edgars deactivated the card, was send to the store . After several calls hundreds of rands waisted on calls, many Edgars staff members empty promises the problem is still not resolved. Shaun Ncube supervisor tried to help and promise after her leave ending earlier in October that it will be sorted out. I Phoned the 17th of October left a message with mrs. Vellela for her to phone me after receiving another threatening message and also that I've been handed over. It makes no sense for a big Company like Edgars to handle their loyal customers this way and how many other customers is paying for services that they are not aware of. Are they in every way operating according to the NCR Regulations.