Amazon India — mobile not received back

Address:

Faridabad, Haryana

Hi
I had purchased vivo v15 pro.. It had some issue with night mode camera.. The technician deputed by amazo requested to raise for replacement as product was defective.. A pickup guy comes and picks up the product.. The pickup message not recived despite telling him to send it immediately.. Nowadays they dnt give any receipy except ereceipt.. I conveyed to customer care.. Since last one week i am struggling with amazon to explain the events.. Amazon website says my replacement prodict has been delivered which has never been delivered so far..
At the end of day my money gone, my mobile gone but no phone received back..
Kindly look into it