Refuse to refund my fee

They refuse to give me back my cancelation fee. The agent Cherine Swanepoel has the most difficult and horrible manners. She needs how to deal with clients. I canceled on the 17th March 2020 the policy states that I will receive 100 deposit back before if I cancel before 14:00 18 March Match 2020. Now they refusing to give back my money. I will never book again through lekke slaap and will let everyone els know.