Bangalore Water Supply & Sewerage Board [Bwssb] — getting bill for not consuming water

Address: 560072

Please refer the attached water bill and also the picture of the meter reading.

Reference # 463300
Got a bill saying water consumed was 27000 lts but actual water consumed as on today was 14000 lts. My only concern here is that why should i pay for not consuming water

Today i got a call from this number [protected] and he says the bill is correct according to him and he also said i need to give a letter saying we are using rain water harvesting.

This is really not acceptable as we had installed the rain water harvesting, only after that the meter was fixed by bwssb.

Today the bill reader visited the house and said they need to replace the meter as it was running reversely again this is a complete messup. Why do these people think we are uneducated?