North Bihar Power Distribution Company [NBPDCL] — not updating the bill at of rs 2450/

I birendra kumar jha consumer no [protected] from basudevpur darbhanga regularly pays my bill on time.in feb 2017 i paid rs 2450/ at ubgb branch chahuta madhubani on 23rd february. Still it is not updated in system. For this i visited the office of board two times and contacted mr pandit and submitted complaints in written. Contacted him on his what's app no. Via voice call and messages. His no. Is [protected]. But no action is taken by him. So kindly take the the matter seriously and refund the arrears which is taken every time since march 2017. Plus take the action against the concerned officials who is that much careless and does not value the precious time of others.
Thank you
Birendra kumar jha