Mahanagar Gas — defective meter

Ca[protected] bill no mw240432 date 04/10/2017
Bp [protected]
Recently u have changed the meter. It seems it runs even gas is consumed.
The bill amount is rs. 1007.73
Earlier it was aug 294, jun 708 apr 391
We have checked for last 3 days meter reading.
The meter runs even when gas is not used.
Please arrange to check the meter and replace it or prettify the defects.