Tamil Nadu Electricity Board [TNEB] — payment made towards tangedco has been rolled back due to discrepancy in bank statement

Address:	Chennai, Tamil Nadu, 600100
Website:	www.tneb.org

Hello,
I Have received the following email from TNEB regarding my payment
and its been almost 12 days and I have not received the money back

"Your below Payment made towards TANGEDCO has been rolled back due to discrepancy in
Bank Statement:
Service No:[protected] Transaction Dt: 21-AUG-18
Transaction No:[protected] Receipt No:PGNHDF8232768 Amount:6928
Contact the Bank for further clarification.Kindly pay your bill to avoid disconnection"

I raised an complaint about the same at my bank and the bank confirms that the payment has been made from their end. If you are going to deny the same I would need an "merchant confirmation of non-receipt of funds" for the same so that I can talk to my bank about it.

I had to pay extra 100 rupees for a payment that TNEB has failed from their end.