Hi I bought AC from Flipkart. The new product I received was defective. I apply replacement but 20 days gone. Still no response from Flipkart. I call many times, mail many times even I tweeted. No use. Last 5 years I buy only amazon , amazon giving amazing service. If product defective we get refund with in 3 days or we get replacement immediately. 1st time I try Flipkart I got horrible experience. Anyone help how to get response