Refund long overdue

On the 21st August I received an sms from Shad Scheffers "Vodacom Customer Care" stating that I will receive my refund into my account after 3-7 working days its the 9th day today. Its been over a month now going back and forth WRT this query and logged numerous calls whereby every call being logged im told to wait 7-14 working days so imagine how many "7-14"working days I wait after logging at least 15 calls and yes I have ref numbers for all those calls. I have already received another device from them after saying I will only upgrade after I've received my refund, I will most probably be charged AGAIN for this device like they "Vodacom" did last month. They have already deducted their money from my account again yet "NO REFUND" how long does it take for a refund to be paid and no not into my "Vodacom account" into my personal account where it has been taken from, should I not have money in my account for their debit order then I'm liable to pay a penalty fee its a month later I did not receive ''My money yet" so should they be liable for paying a penalty as well??? *just saying* Yes its only a R310.86 but a R310.86 which had to be paid towards my kids school fees last month and again this month. I will be sending back the device you sent me as an upgrade and I will cancel all 3 of my other contracts I currently have which end in November.