Gujarat Gas — meter not working, high billing amount, poor service, rude and arrogant behavior with customer

Amount bill 2817/-meter 205 units, past month 942/-, before 541/- & 521/- we complained orally twice at ur office, first time they came check said everything was ok from stove, pipeline n all, and said check for 5 days, second time we went complained after 5 days meter showing 209 and thousand side moved between 0 n 1 i took pic of the meter too. they replied that ur stove is having very big leakage they make us so afraid, and said over everything is ok when i asked about meter he told its MECHANICAL ERROR, meter show almost 1 of thousand side about to come 210 unit. now i recieved call from office regarding we did wrong billing before 2 month