West Bengal State Electricity Distribution Company [WBSEDCL] — low voltage

I am a consumer of wbsedcl. The resident of vill-panapukur, bhangar, p. S.-kashipur, bhangar block-2 facing low voltage problem for a long time. When contacted bhangar electric office they are not taking it seriously and told us to complaint wbsedcl through toll free number. When contacted over toll free number they informed work is in progress and it will be solved shortly. But the problem continues for several years, sometimes voltage falls even to 110 - 130 volts and tubelights are even not working.