Flysafair cancelled my flights without communication, reason or refun

Made booking, paid booking with credit card, sent proof that booking was paid in full with additonal confirmation from bank to provide proof that booking was paid, with authorization number for tracking. Flysafair cancelled my booking without informing me, I discovered online and on their app that they cancelled my booking. They are not responding to calls, emails, whatsapp chats, messanger chats or any of their communication channels provided to contact them. Flysafair is not answering my questions, not goving feedback to when and how refund will happend for bookings they cancelled.