Flipkart — Product bill paid but the delivery boys tells to swipe card and pay again

I have not even seen the product yet but the service was very poor. I got the parcel ..I made card payment but due to some problem in that machine I didn't get printed bill of the payment. But the amount got debited from my account. And later on the delivery boy says that Mam you need to swipe card once again as the payment was not successful. I mean what is this foolishness? My account has transactions . The amount is debited, the flipkart app that I have shows that payment is successful and this guy is saying to swipe the card again and pay amount again. What's this foolishness ? Is this your bloody service?