Indraprastha Gas Limited [IGL] — over billing & late receiving of bill

Address:

New Delhi, Delhi, 110075

Myself dr inder parkash pawar having igl connection for the past more than 2 years, i am paying regularly my dues in time, iglpeople have been sending bills when the last date has already passed & i dont know why do they keep adding previous amount also. Today i received my bill with invoice no[protected] with amount 1189.18inr due to be paid on or before on 05.07.2017. They r sending this bill full one month after the due date. Please clarify & send me the the reply fast. Regards