Outstanding Refund

So November 24th I hired a car from Summit car hire for 4 days. All good and well November 28th car was returned inspected and taken in, I was then to receive my deposit back of R2000. As per their policies I was advise this amount will be refunded within 21 business days. After the return date I made contact with Summit car hire and I was advised to send email with the details of the person who took the car. Hours after sending the details with one getting back at me I decided to call again and I was told we are looking into the refund. Friday i make another call and WHAT I am told to send details again and this time with my bank details, 4 days after sending details for the 2 time still nothing and when I called today I am disgusted by the service and attitude I am told the Accounts Lady is on leave till next week. What utter bull from the time I have been calling I was not told this until today. I will for sure NEVER do business with Summit car hire and will spread the work of their poor service. I WANT MY REFUND