Delhi Jal Board — bill generation

Address:

110092

Meenakshi maithani shakarpur khas shakarpur.
K no. [protected]
I getting wrong bill since last 3 years reading status as sddt. When iam talking with reading executive he is saying contact office when visited office they are saying contact reading executive.
I am continuously using water and meter is also working but they are saying that the reading updated is more than the actual reading displayed in meter i think for thr wrong updation this is no my mistake. Please do the needful asap. I am payin approx 1000 in every 2month where i think according to the consumption it should be 0.