Unable to update debit order banking details

I tried all avenues to change my debit order banking details at Multichoice from a Standard bank sole proprietor business account to a Nedbank sole proprietor business account without success on the 14th of May. I spoke to an agent Moretsele Mashoto with email address [email protected]. I explained the situation to her and that I am a sole proprietor and that there are no directors or share holders. She then mailed me a list of required documents required to effect the changes. These were documents for a CIPC registered company and I rep**** pointing out again that I am a sole proprietor and not a CIPC company. She promptly deleted my mail without reading it. I thought this was by accident and send another mail which she also deleted without reading it. That evening I received and sms to rate her service and I gave her the worst rating possible. The next day, 16th of May I was called by a man who enquired about my experience and I explained the situation. He indicated that he will look into the matter and call me back before three that day, I am still waiting. That evening I received another sms to rate the man's service and again I gave the worst rating. I haven't heard from Multichoice or canal-plus again and the debit order will shortly bounce since I no longer use the old Standard bank account and it is empty. Give me a call Multi Choice.