Tamil Nadu Electricity Board [TNEB] — current fluctuation in your apartment from past two days

Address:

Chennai, Tamil Nadu, 600112

Its been since 2 days we have fluctuation in our apartment. When i cald the customer care number, the person on the other hand says that we need to give application demanding the eb to change our cable wire into a higher voltage and even give the request to increase the power in each flats card. But into my notice i see an illegal wire which is connecting to our building to take the current from our building without our notice, we have also complained to the customer care about it but they seem not to take any action. Can this be resolved from your end??
Appartment address is below
R. B paradise
Old no : 26; new no :60 manickam street, choolai, chennai :600112.
Awaiting to hear positive response from your end. Kindly let me know to whom should i complaint abt it