Pathetic customer service from Vodacom

I had a debit order that was going off and all of a sudden it stopped in June. I messaged vodacom to find out why and they just cannot tell me why. Finally someone asked me to confirm the account number only to find out that vodacom decided to debit an old closed account of mine. I asked them to change the debit order back and they insist they can’t because my account is frozen then blocked then the bank is blocking the debit. They keep referring me to the bank I called the bank, they confirmed my account is active and there no blocks or stop payments. I tried telling the call centre agents that and they keep telling me to speak to the bank. It’s like speaking to a brick wall. I asked for a manager I asked for complaints and they ignore my requests. I made an eft to pay my account and now they keep telling me I’m in arrears I sent the proof of payment through about 4 times from the 3rd of June and nobody responds. They are not fixing the issue of the debit order neither are they allocating my payment. Customer service is so pathetic and unhelpful. Now they just ignoring any messages I’m sending.