Bangalore Water Supply & Sewerage Board [Bwssb] — excessive bill charges

Address: 560054

I am a resident of Mathikere extn residing at 34/1 11th main 3 rd cross Venkateshwara nilaya. We have a prolonged and unsolved issue of water meter bill excessive charges. We had complained several times and bwwssb officials had advised to change the meter, make a t or u like to avoid air rotating meter. Valve for opening etc. eventhough all these are done there are no changes in bill. When complained to bwwssb they say meter reading is correct based on calculated bill.we have spent enormous money in modification not sure who can help. We have enquired our neighbours they all get a average bill of 300 to 500 but for us always it’s above 1000 how ? Please consider our complaint and help, also bwwssb officials are very rude and abusive.