Delhi Jal Board — excess billing amount & bill manipulations

Address:

J-31, Shri krishna Aptt , Sector 16 ,Phase -2, Rohini, New Delhi, Delhi, 110089

Delhi jal board, k. No. [protected], meter no. M[protected]

Complaint is against following points : -
1. Meter against this connection installed in nov 18 but till march 19 unmetered bills were received by us & paid as well.
2.in april 19, meter was updated in system in bak date e. G. Nov 18.
& generate a bill after manupulation with zero value (Bill no.[protected]. Bill showing -1770 amount.
3.in june, a fresh metered bill was generated from nov 18- june 19 with complete reading & complete amount. (Bill no.[protected]

Need a clarification for : -
1. From nov 18-march 19 - unmetered bill was received, if meter was installed in nov 18 as records.
If it was unmetered till april, why fresh bill was generated from nov 18- june 19. I[censored]pdated in april with zero value, bill should be only for two months may & june.