Vodacom should refund my overpaid closed account

On closure of my Vodacom mobile account, I overpaid the money required to close the account. I physically paid cash into the Vodacom account but they also went ahead and debited my Standard Bank account.<br> <br> I have been battling since 27 September 2015 to get my refund back. Please can you arrange this. I have sent repeated emails to [Email Removed] with the proof of payment and the Bank account the refund should be paid in. <br> <br> I have been very patient. This is a total farce now.