Hyderabad Metropolitan Water Supply & Sewerage Board [Hmwssb] — Three times billing

Hello, I owned a house in 2018, as my house area is 100 sq.yards I need to get the single billing but I have been charged for triple billing for the last 3 years, as I wasn't getting the bill receipt I was unaware of this, my house comes under slum area and I use to get the minimum bill. I came to know this in October 2020 when the government has raised the one time settlement scheme, I was told to submit the documents to replace the triple bill amount to single bill amount for 3 years, I need to submit the documents for twice as the office person has lost my documents, from 7 months I have been going regularly to office.for the update of my application but the status is same, they are not taking any action, all the verification has done, all they need to do is to change from their system but they are not doing, I request please keep my application in consideration as I have submitted all the correct documents, kindly please replace my triple bill amount with single bill and also change the triple billing to single bill, also I want to change the name and Aadhar number as it was registered to the previous owner,
I hope this complaint will be taken into consideration, .
CAN:[protected]
thank you.