Refund not recieved after 2 weeks of transaction

I was allocated a vehicle by my insurance during the period my vehicle had gone for repair.On collection of the vehicle on the 9th of November 2015(OR Tambo),I paid in an upfront amount as required by avis,I also paid in an amount for tire and windscreen insurance for a period of 30 days as I thought my vehicle would be gone for a long period.On this day,the gentleman that assisted me notified me that the deposit and unused insurance days amount would be refunded to me after the vehicle had passed inspection.I then returned the hired vehicle on the 17th of Novemeber. As of today,1 December 2015,I have received no communication or refund from avis.I then called avis on 2 occasions,the last being to the Johannesburg branch and spoke to \Nozi"Who was cheeky"