Rentalcars.

I booked a car through Rentalcars.com on 18 June for use on 8-14 August. My husband fell very ill prior to us leaving and I had to cancel the car. I did the cancellation two days prior to our leaving with HERTZ. For a month I battled to get hold of Rentalcars.com. I sent five e-mails and had NO reply. I sent through all the booking forms, no reply. I eventually got some help from a lady in Cape town who managed to get the right number for me. An arrogant man calling a 66 year old Miss does not understand neither does he care to refund our money of R2679.13. Is this fare? do you decide that to keep the money is ok after I have battled for a month to get hold of them. How can you keep the money????It is absolutely disgusting!!!!!! this is according to me *****ing someone's pension money. Please advise and help if possible.