ORDER WAS CANCELLED AND NO REFUND YET

I've purchased items online which was cancelled due to stock unavailable. Payment went through and I'm still awaiting my refund. Purchase was on the 11 December 2024. The online department of the third parties is a total nightmare, no respond to emails or answering the phone. Makro customer service on 2024-01-10 was tops and very helpful but without any luck.... According to the refund policy it takes up to 10 days to be refunded...so what now??