Refund not payed

Good Day,please assist me with my refund that i have to get from Ankazimia Guest House,i Paid an amount of R4000 on the 27th August 2022 for the booking of the 16th to 18th September.I cancelled my booking on the 31 August and asked for the refund,i was told to send my Banking details so that they can pay into my Account,I Spoke to the Gentleman called Kanny from day 1,i even have a qoutation that states that 100 % refund if cancellation is made 15 days before.Now they refuse to pay me back.Kindly help me in this Regard.