No refund return

I have cancelled my stay with the owner at HoutBay Gems two weeks prior to the date of my actual booking, as we had family plans that changed. Upon booking we were informed that should we need to cancel the booking as long as it was done a within a weeks notice we would be refunded. We have tried to talk to the owner but she will not return or answer my calls. We are within the two weeks notice and now she will not return my deposit.