Bangalore Water Supply & Sewerage Board [Bwssb] — paid bill twice

Address: Bangalore, Karnataka, 560028

S-172740 consumer i'd
Paid bill twice of water bill
First in bangalore 1 and then paytm
But in this months bill its not adjusted why??? (1323 rupees)
If we didn't pay bill of last month you know to add 2 months then why not you wont adjust if we pay more???
And government offices won't receive call at all worst government!!! Tried thrice from morning. Then why will you give this numbers when you won't pick