Vodacom Agents De*****ing Customers by upgrading them without consent.

I've had a contract with Vodacom for two years, I've canceled the contract in May because it was due for upgrade in July 2022. I couldn't upgrade because I've lost my job in April. By end of June I got an invoice that I owe. When I called, the agent said it was only one contract that was canceled. The other number is still on contract. I got two phones one one contract for my kids. I've been calling the call center to fix this, but those people can't take no for an answer. Vodacom agents are rude and they are bullies. I was talked into upgrading to a month-to-month contract which I can cancel anytime. Then in July I got an invoice for a 24 month contract of over R300 whereas the agent told me about R70 for a data contract. I've been calling and been sent from pillar to post, sending emails to customer care, I even sent a message on Twitter but not one can help me. I've asked for proof where I've agreed to a 24 month contract since they say the calls are recorded, but no response, instead they debited my account again. Vodacom's agents are evil and they are de*****ing people just so they could earn commission. I swear on my life I will never do any business whatsoever with vodacom again.