Tamil Nadu Electricity Board [TNEB] — Tneb, Excess amount has been charged as arrears

Cust no: 08 [protected]
I have been charged bill of Rs. 2990 for last month in my bill.
Whereas an amount of Rs. 4830 has been included in the bill as arrears for md shortfall and a total of nearing 7820 has been charged.
Since we have been affected by covid and hospitalised we had delayed in shifting the commercial distribution to domestic which has caused rise in md.
Please consider the complaint and reduce the bill amount by cancellation of excess charges