Demanding Premium again even when already paid

I have been receiving email to pay Rs30450 from HDFCLIFE even after i have paid the premium amount on 5th of May.

One email was sent just 3 days after on 8th may and it’s sent again on 17th may. These guys are causing unnecessary stress by asking 30K amount again and again.

Please request them to stop fraudulent practices of demanding money multiple times from customer!