Debit order date not authorised and extremely POOR SERVICE!!!

I’m absolutely annoyed with the service from telkom they do not have a consistent collection process, I started a contract around April/May ever since they have not collected on time and they just randomly go to my bank account on dates that I have not authorised and this messes up my profile with my bank, their systems take forever to update information which causes their consultants not to be able to give you proper answers, whenever you ask for a manager they never around and I left messages numerous times and I still have not been called back… what a unorganised entity this is!!!!!!! I need someone to account for me being in a minus and charges with my bank I will no longer tolerate this NONSENSE!