Maharashtra State Electricity Distribution Co. Ltd — MSEB Billing Error

I am resident of B.T.Kawade Road. My last bill cam to be about 2100 approx with 336 units.
I am staying in 2 BHK flats, and without AC. My average bill for the past years would lie in between 700 to 800. But last month we got bill of 2200 with lots of powercuts in that month. Even though If we keep all the loads in my home running, we won't get such high bill. As this is MSEB issue, this is very cumbesome to get it resolved as nothing is online. Thanks & regards