REVOLTING SERVICE AT VODACOM

I have been moved from pillar to post various departments which cannot help me ( Contracts dep(Nelly, Nwabile and adelaite- Upgrades- Gugu, accounts, vodasure and callcenter) I have been on the phone for the second week now with over 2 hours on the phone. I did an upgrade at Vodacom Clearwater, iphone6 and told the salesperson that I do not want insurance-he went ahead and did this. Now I was sitting with 2 insurances running. I called the salesperson and he said he cannot assist and I must take it up with vodasure, vodasure stopped the second insurance but the said I will still be liable to pay from the date the upgrade was done till it was stopped. Why do I have to pay6 for something I did not ask for? The service was so bad that everyone is just trying to push the busk at other departments. I will not let this debit order go through, I will block it until someone calls me and explains and resolves the issue. And please they should also not debit the previous account holder cause I was told that her last invoice was out on the 15th May, the new line transfer will now go under my name and account number. No one is able is view my account-AMAZINLY I CAN VIEW IT...PLEASE ASSIST.