Amazon India — ineffective customer service

Address:

Mumbai City, Maharashtra, 400037

I purchased a product on 30th sep and window to return the product closed on 11th oct but the product was defective and after couple of months went bad, the seller is not contactable inspite of multiple mails and phone calls and the seller is still selling the product on amazon and when the customer service is asked about the same they have no clue, this is the worst exp even though am amazon prime member, also the service team not helpful at all and just keep saying we are just portal and cannot stop anyone from selling anything, good then next time they might also sells bombs and ammunition as they cannot control who sells what