Tamil Nadu Electricity Board [TNEB] — Bill High

I have received the RS.5080 current bill for the month of July 2021. it is 1000 units which I have not used and for my average units is 480 to 500 units only this is double the amount.
As we all know there is a lot of errors and problems in reading the current.
As well as I feel due to some error my EB bill amount is so high I visited the EB office and file a complaint but still has not resolved the issue. my due is on 4th Aug 2021.
Consumer Number [protected]