Poor refund system from superbalist

I had made a purchase before lockdown had commenced and expected delivery to be made but no delivery was made , so I logged a return for the product I had bought as I was no longer interested in the shoe. I had placed the order on the 15th of March and still havent received the shoe. I placed countless return tickets but no communication between me and superbalist occurred they said they'd get back to me in 72 hours but still no communication I just want my money back and just end all ties with superbalist. Because them having my money and then going silent doesnt sit right with me. I cant even contact their call centre cause they arent operating and they had set a collection date of the 1st of June for the shoe at the couriers yet that also hasn't happened. I just want my damn money back