Wallmantra — Refund not provided despite multiple attempts

I ordered a chair from WallMantra on 2nd July, 2023 but since the product was defective, I returned it back. But I haven't received the refund despite multiple attempts to reach out to their customer care over calls and emails. I registered a police complaint in cyber crime branch but even the police didn't take any action and closed the complaint in 2 days. the refund amount is 11, 999 and order ID is WM8307254. I have seen thousands of refunds that company has not provided to people and they have done a big fraud with people's money.