Bangalore Water Supply & Sewerage Board [Bwssb] — rain water charges issue

Address: Bangalore, Karnataka, 560073

The rain chargers is still displaying on my bill even after submitting prof for installation of rain harvesting equipment.
When i approached the bwssb with acknowledgment which they had provided, the irresponsible behavior.
Shame on government to have such kind of managers and co workers. Finally issue is not resolved, i had to pay my chargers shame on bwssb and the manager his ward no 14. Bagalagunte.