Storage Genie Endenvale refusing to pay back deposit.

My husband and I lived in Namibia. With Covid, our permits got declined. We had to resign, pack up our life in Namibia and move back to South Africa. We paid a deposit of R1200.00 to Storage Genie Edenvale for a container because we though we could quarantine nearby. One day later the authorities called and said our name is on the list we can go to the border, but we will be qaurantined in Upington. We had to cancel that container and get a new one closer to my inlaws so that someone can atleast accept and sign for our furniture. We tried getting our deposit back from storage genie. Unfortunately the reception lady Shanda said that her boss does not want to refund us as he wants to investigate it first. We paid them in May 2020. It has been 7 motlnths now. They did not have to keep the container for months before we cancelled, it was just ONE day after receiving the payment. I worked in transport and has never experienced this. Whenever someone pays you and a service is not rendered you pay back the money!!