Flipkart — Received old faulty mobile phone google pixel 6a

I ordered google pixel 6a from flipkart who was official seller of google pixel phones .I received order on November 1st 2023 but I recevied old used phone which was having scratches on backside also it was having heating issues so we raised replacement request which was approved by flipkart after some prechecks.
November 5th 2023 when delivery boy came to deliver the replacement request he told us that he is facing some server issue and he went without delivering replacement request, we waited till next day but no luck. Then we raised issue with flipkart .Since then flipkart is just extending resolution date day by day and updating incident ticket and clsoing incident ticket by saying product didnt met requirement and hence courier denied package. But in reality courier boy jusst visited home once and said its server issue.

Since then there is no resolution on this from flipkart side .
I didnt received my replacement request yet .

I think flipkart, seller(Vision Star) and wish master(Ekart) are involved in this fraud.

Kindly assist.