Worst Service Ever!!!

I am really sick of Homechoice! For the past 5 years I have been a client and using debit order(20th OF EVERY MONTH)as my form of payment (as per my arrangement with Homechoice) I don't understand why there would be debit order for few months then it stops and the next thing I will be getting phone calls that my account is in arrears. Why would my account my account be in arrears when I am using a debt order as my payment method!!!! This is really sick and damaging my credit profile. On the 20th of May 2018 a debit order went off my account and in 20 June 2018 nothing went off my account and there was money in my account and today 12/06/12 I get an sms to saying R1329.93 payment is required like what the Hell!!! This is not TCF (Treating Customers Fairly) and this is against the NCA (National Credit Act) requirements. A debit order is a once off agreement with the client and only if the client does not pay or when the debit order is returned, then I defaulted on my account. This company is not abiding by the NCA requirements and needs to be reported to the National Credit Regulator, you guys don't know what is Customer Service. You cant expect me to call every month and make an arrangement of how I am going to pay my account, A client can only call to make an arrangement only when they default o their account!!This is my 2nd complaint on Hello Peter now!@