Mahadiscom / Mseb / Msedcl — faulty readings

Address:

401501

Hello respected sir
I have been getting faulty reading from past 8 to 9 months. Every month i have to walk to the mseb office and submit actual reading and make proper bill
But this time the difference in reading was about 367 units stil they just reduce ₹1000 and in the next month bill current reading was just 37 units and the bill was for ₹647 so it's really unfair. For reducing the bill amount you do it to minimum, but it's not even minimum. How can for 367 units it costs just ₹1000 and for 37 units ₹647.
Please look in my matter as soon as possible.