Complaint - Termination of my line depsite payment as per notification

I received a voice prompt from Vodacom in July saying "to remain connected on the best network, pay R1336 by the 31/07/2019, which I did. Guess what, Vodacom has disconnected me despite my payment as per the said date! I called in at 18.04pm and held on for 12 minutes before speaking to Refiloe. NOT helpful at all. Security questions are there to eliminate disclosing of info to 3rd party - rightfully so. But how does Vodacom ask stupid questions like my Vodacom account number, what package I am on, how many minutes I get and so on?? did it ever occur to you that people do not remember these sort of info, more especially when the contract is already well over 12 months??? why could I not be asked my ID number, Address, employer, email address, bank that I make payment from etc? I finally 'sc****d" passed your security questions and suggested to Refiloe to speak to management to relook the security questions. instead of her listening to my suggestions and concerns and putting through to management - she opted to argue with me. moving forward on the call she told me my acc is in arrears. I asked the question, why did Vodacom send me a voice prompt to pay a specific amount by a specific date only to then cut of my line. how ridiculous. I always paid this way, why wasn't my line terminate before in that case! she couldn't answer me. I asked that I speak to her manager, again, she would not do that, rather argue with me. eventually she told me her manager will call back in 30 minutes... hello, its 9.22am the next day.... no call back. I would like someone in a senior role to call me from Vodacom and sort this mess out. absolutely PATHETIC SERVICE all around!!!!!!!