Unfair penalisation and frustration with Customer Service

I have an account with WebAfrica. I asked them to stop the debit order as I have suspended the account the debit order was coming from. I have paid manually for the past two months with no hassles. Last month somebody decided to reactivate the debit order without checking with me, The debit order was not honored and as I tried to pay manually I was blocked by a message saying they are in the process of debiting the account and there is nothing I need to do. I changed my account details and asked them to allow me to pay manually. For about 4 days I have been trying to pay the account and failed. Thye put through the debit order that took 3 days to do, which came back unpaid due to the bank's fault. They have not penalised me for late payment. I have paid the account manually after being told I am not allowed to by one of the consultants, and after I have paid manually for about two months. Can somebody explain to me what all that was about and please check the trail of messages I have had with your consultants before you respond. Why are you penalizing me?