Amazon India — fraud service

First they sent me a defective piece, which was delayed for 3 days. First they where not ready to take back the phone. They confuses the customer regarding the return. They then refunded the money in amazon pay balance and shows the delivery date to be a week ahead. Contacting the service center about the long gap of delivery, the executive said to cancel and reorder. It was today and now i got no refund and they say it will take 3 days to get my money back. See i had been running behind this for more than a week. They do not even clearly mention their policy,.