Extremely bad service

I called vodacom in last Tuesday approximately 9 working days ago. This was assist a premature upgrade, they confirmed the contract I need to replace with and sent me a quote to pay up the device on previous contract. The payment was made 2 days after. I was told on that Tuesday that my upgrade will be processed the next day and I will receive my device the next Monday. I then called in daily, spoke to call centre agents daily who promise to call back and they dont, also when I send an email they call me back and then tell me they will call back after they get feedback from upgrades. I dont have my device or and upgraded contract despite paying up, also have not been given a timeline of when this will happen. Today vodacom called made me hold for 8 min, put my call through to upgrades only for upgrades to say sorry our system is down please call back... I have exhausted all options with the call centre and customer care email address. Ridiculous service..... Seems like the call centre agents lie continously. Never experienced this before. I have contracts with both mtn and telekom, there service is far superior