Amazon India — oneplus 6 return

Address:	560103
Website:	Amazon.in

Ordered oneplus 6 from amazon and got a defective product, got it replaced and got a defective product again. Amazon sent the technician to verify and finally amazon agreed for refund. On 25th June amazon delivery boy collected the mobile and at the time of collection switched on the mobile checked the imei no on the phone ond matched it with his records. Checked rest of the in the box stuff and after complete satisfaction took the product and made some enteries on his pda, may be marked it as received or collected. Agent did not switched off the phone after checking the omei and when i asked him to do so he said it will be checked again at the hub. Hiwever the status on amazon was stuck at return started rather than changing to return collected or something like that.
I have been constantly following up regarding my return as it costed 40k and amazon call agents conformed not to worry it is in transit to warehouse.
Now today on 10th July i am informed that i have returned only the charger and mobile is missing or i have not returned it and refund can not be processed. For sure product was checked at my doorstep and now after 15 days i am being held accountable for not returning the product and thus a loss of 40k.