Mahanagar Gas — complaint about the increase in bill amount

Metre number:11158128
Bp number:[protected]
I am writing this complaint to inform you that are bill is coming so much anytime especially in this month. Utilization of gas is limited in our house, i had complaint you about this matter earlier but no response was given. I think there is problem in meter or there can be problem in gas line. So please look into this matter and solve as early as possible.