Customer Service is pathetic!

Been with Vodacom many years. I am extremely disappointed with customer service from Vodacom Online. I called in multiple times to arrange collection of devices due to a faulty upgrade from a consultant that was done on black Friday already. I will not pay the bill for those devices which is not in use. It was prepared for collection since Brian Mbata issued a new contract. Also my number is now blocked from the call centre so I am unable to reach them via phone. I have sent emails but received no response either. The cases has been escalated and still no response from them. I doubt if the agents receive the relevant training to assist customers. I want to get in touch with a manager to assist me and rectify the faulty contracts. Another contract is added to my account which I do not request. So how does this happen???? Your service is pathetic and that is an understatement.