North Bihar Power Distribution Company [NBPDCL] — wrong/fraud bill/no consumer grievance redressal

CA no.- [protected]
there is no one living in this house[for which wrong bill keep coming]and main switch is also shut down. in one month i receive wrong bill and complaint about it to the concerned official . he assured me that correction would be done, but no correction has me made. I kept waiting for it, and 3 months passed and bill keep increasing[wrong] .
i also emailed my issue to MD{md.[protected]@gmail.com} several times [ address provided through its's website ] but i neither i get single response nor any action was taken.
however once again i contacted local official and bill of one month was corrected but remaining month bill are still not been corrected.

whenever i call them they either hang on me or try to avoid the matter.