Myntra.com — Myntra not refunding my money

I ordered a shorts and it was supposed to be delivered on 18th december 2021. I paid 1299 for that while purchasing.
Got a message at 11.40 am on 18th dec that it was delivered but that was not the case. No delivery agent came to my house.
I called the delivery guy multiple times but he didn't respond. I raised multiple tickets with myntra regarding the same but they didnt help and gave the standard response that they cant help and it is marked as delivered at their side. They delivery guy showed up at my house on 20 dec 2021 and requested my to take back my complaint from myntra. He offered to pay me from his salary and told that myntra will fine him more than the MRP. Called myntra multiple times but there is still no response. Now even the customer care agents are disconnecting my calls half way. I just want my money back. Can't let myntra steal my hard earned money.