AWAITING A REFUND

Hi<br> I paid my December and January (R460.00) bill into the Nashua Account after receiving a message from they saying I owe them money, in the meantime my phone was transferred over to Vodacom and I had not paid there bill and they threatened to cut me off.<br> <br> I spoke to Musa on the 12 January 2015 who referred me to Prudence and she said I would get my refund within 5 -7 working days it has no exceeded that time and I have not had my money put back into my bank as well as I have emailed her and no response.<br> <br> I am so frustrated and annoyed, what do I do? What recourse do I have?