Vodacom disgusting service

I wanted to upgrade my business cell phone contract as mine came to a end. I had to phone to have it upgraded, they never phoned me. I was given a price for the new contract and 2 days later i sent a request to upgrade to that amount. 2 days after i get told its on back order,the consultant never told me that. 4 or 5 days later a different consultant phones me to tell me the contract is more than actually quoted,so i corrected her,she advised the original consultant will phone me. The original consultantant phones me and says its the new prices of the new money,really. I refuse to pay more for what i was originally quoted and signed for. i was told they are going to try and fix it. still no response, this has been going on for 2 weeks. I repeatedly get told the department that is supposed to adjust. this is not coming back to the consultant . This is appaulling service ,i keep phoning for some to help me or for a supervisor to contact me but no one does. I get told the supervisor will contact me but im totally ignored. Im totally disgusted in the poor service from Vodacom, I have business fibre and busines phones with them,i will be changing. Disgusting Service