B.e.s.t. Undertaking — Escalated bill for the month of May'21

Address:

Flat no 14 ,b wing Amarjiwan society, tulsi pipe road matunga west Mumbai 16.

Consumer no[protected], meter mo H118462.
I usually get a bill of 600 to 800 rs per month. But have received a bill of 6500 rs for month of May which is almost 10 times the usual bill amount. This residence is occupied by 2 persons also the entire last year inspite of being at home the bill was never above 700 rs.