Cell C - Annoyed Customer

I am unsure of the reason my debit order for Dec 2021 did not go through last month. As per the agent I spoke to, this was an error on Cell C's side. It is really frustrating to receive an sms stating I am in arrears when the fault lies on cell C's side. I called in on the 4th January 2022 and was told the debit order will be resubmitted and should go off my account on the 5th January. Nothing has gone off my account and as usual, cell C does not notify me, I had to call through again on the 6th January, only to be told that there is a problem (once again) with cell C system and that I should make a manual payment. I have processed payment and emailed proof on the 6th Jan (along with my complaint, which was ignored). I have received an sms again stating that I am in arrears, I called cell c once again (12th January) only to be told that my account is not in arrears and my debit order will go off my account as it normally does from the end of January. Today (18th Jan) I receive a call from collections so I returned the call ***). I spoke to Tsego who has advised that my account is in arrears. I had to once again explain the entire story. This is really frustrating, Cell C's customer service is pathetic. When I asked to speak to a manager, I've been told they are working from home, when I asked for a complaints email address, the agent advised that she does not know it. I have asked for a manager to call me, which chances are, it is not going to happen.