Shocking Vodacom Accounts

I've had account issues since the middle of last year. I only picked it up in December. Numerous phone calls made to try and have the account issue fixed and the refund made. Part of the issues was sorted but the refund was made. Now in my latest statement, the amount is still the same as the debated amount and when the deduction went through it was nearly R200 more than the statement. Pointless trying to call as all I get is automation and no person even though speaking to someone has proved to be no point anyhow!! Still being overcharged and no refund to speak of!!!