Bad service

on the 26th July I called customer service last month and asked them to refund me the amount they deducted from my account, my premium has always been R429 per month (compact package), last month they deducted R645.33, I was told the supervisor need to authorize refund and that could only be done the next day, but nothing happened, a week later I called again and spoke to consultant who was deliberately delaying the conversation and kept me on hold several times, she said her name was Nelly. I had no choice but to reverse the debit order because none of their consultants kept their promises. yesterday I called customer service and asked for my customer number and explained to the consultant that I have since reverse the debit order and bank charged me R45 for that, I asked her to give me customer number so that I can make R429 payment and she gave me customer, this morning when I wake up my subscription was disconnected, I called their customer service and spent 26min14seconds with consultant called Lwazi, he said according to their record I asked consultant that I called on the 26 June to change my subscription, I explained to him why I called on that particular day and I never asked for any changes on my subscription, he then said he needs to verify that I never instructed anyone to change my subscription to PVR and he was gonna call me back and I shouldn't make payment as yet , he called 2 hours later and said they've investigated and found that I never gave that instruction on the 26 June when I spoke to their consultant,. now am told they need to investigate if I didn't do self service and change that, I find this behavior insulting and undermining customers, why do you treat customers like ********* when they consistently pay their subscriptions, why do I have to be inconvenienced like this?