Change of banking details - What a joke

Staff is not properly trained to take calls nor understand my request when I asked what was required to change my banking details to my business banking details. To only see via the emails of the staff members that my "ticket" has been closed and that I need to restart the process. Firstly, no customer care, no idea what documents they are actually wanting from me, no email provided to send whatever documents they need too, no one asked who I was or how I could be helped, checking phone call records etc. Debited my old account with no funds in it, because it's not being used. Cell C your customer etiquette is appalling. Being a customer for over 20 years doesn't mean a thing - Merely but a number. If this not sorted out by the end of the week - I will be reporting all staff members including Cell C to ICASA. Lets see how long this will take..... Good luck with anyone who signs up with Cell C. Getting information out of Cell C is liking trying to get water out of a rock.