Disgusting service from a Team Leader

I have an existing complaint because Vodacom messed my upgrade up completely and tried to charge me R3950 for a headset that was included in the deal, which promptly was unpaid from my account. I got an sms notification of the unpaid on the 8/8/2018 and promptly called at 08h10 in the morning, speaking first to Gugu, then to Porsha who assured me she would correct the error as well as refund my unpaid fee. On the 27th of August I received another SMS informing me my account was R4000 in arrears. Realizing my problem was never resolved I called again, angry and worried. I spoke to Matifadzo and was told that a team leader/supervisor would call me back. At 13h10 the call came through and I was put through to Lydia Mamodiha, whose service was absolutely shocking. Knowing this is an existing query/complaint she didn't peruse my query at all before commencing the call...she asked me security questions (they called ME!) which I answered until she asked me what my Vodacom account number is. I said I had no idea because I paid via debit order and didn't recall it off the top of my head and she rep**** "if you wont give me the information the I wont assist you" - I had already spoken to at least four other people and none of them asked me that or had a problem with all the other stuff I confirmed. She proceeded to antagonize me for the rest of the call and played a belittling power game bordering on a refusal to help me. I was told that the R4000 was a K invoice which is issued because I had a low credit score (I have been a Vodacom client all my adult life, never missed payments, have no clothing accounts)where the other staff confirmed there was an error with my upgrade. She then said it would take at least 14 working days to resolve even though it was an existing complaint and that I was kicked out of their debit order system and would just have to pay cash. Whenever I got upset she would interrupt me saying I was shouting, I couldn't finish talking half the time. This is not the service I expect from a supervisor, this was arrogant abuse and withholding assistance. If this is the caliber of the staff you employ in leadership roles then I am absolutely disgusted. If she was half as competent as she was arrogant, or even half as helpful I would have put up with her terrible attitude. How does someone like that attain a position where she is required to resolve problems of clients who are already unhappy because of existing issues? This was the most shocking, terrible service I have ever received. Please go and listen to this call!! Ref 1- ********** **********