Dear Sir, I got call from 8033273000 on 25 Dec 14 saying that I have won Amazon payback prize of Rs 10000 on my shopping from Amazon on 14 Dec. When I contacted Amazon customer support they confirmed that it's spam from the seller end linked with Amazon and Amazon is not responsible for this. Sir, its a serious offence as the caller had my all details and Amazon is fully responsible for the customer security. You are kindly requested to take appropriate action.