Pathetic Customer Service and Delayed Service

Vodacom debited my bank account twice in December. I received an SMS from Vodacom stating that it was due to a glitch and that the second debit would be reversed and any fees associated due to their mistake would be refunded. I had R460 left in my account, my Vodacom debit being R446. Due to their glitch my account was in debit of -R432. Vodacom have reversed the second debit but have not refunded my account with the fees associated with their mistake. My account is now -R77 and every time I call Vodacom they cannot inform me as to when their mistake will be resolved and the fees refunded. My bank is now sending me messages because my account is in a negative balance. I am unemployed and had the correct amount in my account to be devoted but due to Vodacoms incompetence I am now faced with a negative bank balance and cannot be advised as to when they will rectify their mistake. It is now 8 days later and I am still awaiting the reversal of the fees associated with their glitch.