Vodacom! Worst network provider!

My cellphone contract ended in January with Vodacom and I called and cancelled it. Their agents did not do their job of canceling the contract the first time I called and their incompetence resulted in my contract only being cancelled end of April. The account is in arrears and I told the agents that I will not be liable to pay them and they agreed. Now they have switched my network off despite having switched my account to prepaid. I'm calling their head office now and have been holding on for close to an hour now. Their *********** agents are probably asleep. Vodacom is the worst network provider and I'm switching to Mtn tomorrow morning. FYI, you're not getting a cent from me and I will give you until 9am in the morning tomorrow to sort this issue out otherwise we'll meet in court!