Tamil Nadu Electricity Board [TNEB] — Excess amount with out reason

Sir I am a consumer in Anna Nagar West ..my service no is 168:020:41...my reading was taken on 13.10.20 and the amountwas 3430 RS ..on that day for 750 units .till the last date the mount shown in my mobile was 3430 RS...but suddenly an amount of 423 RS was added to my amount and totally I was advised to pay 3853 RS ..I called EB office for the explanation but even they said they don't know..I was shocked but no way to delay the payment as this may lead to DC ..so paid it and till now I called the EB concerned authorities who said they have no idea...423 RS I paid finally without any valid reason..pl clear my doubt why it was added at the last minute and without any valid reason...pl lessen the amount in this month EB charges as ther is no justification in that amount of 423 RS..I am yet to pay this month amount..if you pl do it sir at the earliest it would be helpful...

Thanking you. Yours faithfully
Srinivasan
pH.no.[protected]