Stole my money - Zero service provided!

We booked a MoveCube on 24 March and paid a deposit of R4600. As part of the booking, you have to select the inspection date and the Cube delivery date. Due to import complications at the destination site, we contacted Seven Seas Worldwide today, 28 March to cancel the service. They have not done a single thing, however, according to their Ts&Cs we are not eligible for a refund as we've already made a booking for a site inspection. What absolute nonsense is this - a site inspection is literally someone that will drive to my house to ensure there is parking for the truck. But because this is scheduled in their system, I cannot get a refund!!!!! Worst customer service ever!