Green Soul Online — Paid but Didn't received item

We bought their chair through Amazon, recently it's armrest broke and when we contacted them they told us warranty doesn't cover it and for getting part we will have to pay it. So on 17 Jan 2025 we paid 749/- rupees respectively alongwith our current address on their mail. We never Received that part. It's mistake either from their part or their courier partner. They keep saying I have received it and they show us a receiving receipt with signature under my name saying I have recieved and signed it but No one ever came to our address to deliver it. Also those are not my signature. After continously calling them to fix our issue they have closed the complaint saying you have received it and we have sign of receiving. Shamelessly they kept trying to get away with it. From last 1 week everytime I called, only thing I heard was you will be called in 1 hour or by evening or by tomorrow.