Tamil Nadu Electricity Board [TNEB] — excess billing in connection [protected]

The connection no.[protected] is my flat's common connection covering stair case lights and water motor. Normal average consumption is 340 to 350 units bi-monthly from the year 2015. Post lockdown reading shown as 1480 units for 4 months (Two bimonthly), this is not possible, request to order reinspection to take exact reading. Holding payment till then