Highly inefficient, dysfunctional accounts department.

In brief: 1. Our Pty Ltd has been trying to get the number moved from my name in the sole propriortorship to the Pty Ltd since it was registered with SARS in September 2021. Reason for refusal- a R150 private monthly contract with Vodacom that is paid late on occasion, but never not paid. We have had this number and a contract with a debit order for 7 years and have never failed payment. 2. Since September 2021 when the bank account of the sole propriotorship was closed and a new account opened in the Pty Ltd, we have been overbilled regularly. The contract that we have is for a monthly amount of R1450 odd. We have paid the invoiced amount every month without fail, but every statement received has additional amounts charged to the account, oft times double the contract amount. Last month our number was shut down because we paid the invoiced amount and Vodacom wanted an amount of R2500 instead of R1450. We were forced to pay to open the number as it is the ONLY business number used. I have sent all invoices and amounts paid monthly in the past year and asked for assistance. The accounting department does nothing. Accounts will phone the business number in question, ask to speak to me about the account, and as I am not available on that number (or on the premises) they refuse to talk to my partner, who has provided them with my mobile number for contact. I was called once, 3 weeks ago, in the middle of a meeting. The consultant wanted to discuss the statements. I asked her to call back in an hour-she said she could not call back. I asked for a name and number to call back which she said she would SMS me- I'm still waiting and have not received another call. I asked a helpful consultant at our local store to assist and he logged the issue- but still no traction from the Vodacom accounts department. A more inefficient accounts department you can't get! If we did not need to retain our number of 8 years for business purposes, we would have moved our account. I am disillusioned to the extreme!