RARU stole my money.

I ordered an item from Raru which was over a month late, so I requested a refund. They told me they would credit my account and then after 30 days they would refund me. They said this is how their accounts department did that. Now that Raru has closed down I have still not gotten my refund which was over R1,000. I have mailed them asking what is happening with no reply. It's a lot of money that I potentially am not going to ever get back. What course of action can I take?