Delhi Jal Board — billing made even below 20kl per month

Address:

110092

KNO:[protected], Bill due date for amount Rs.449 for the Bill period 28/04/18 to 25/06/18 total 58 consumption day units only 15 kl very less as per delhi govt exemption limit 20kl per month then why are you charging amount to pay, even also same thing happened in previous bill Rs 374 paid where as in both cases it is well below consumption limit of 20kl, please check and regullarise my bill and refund my amount paidRs 449 & Rs 374, otherwise i have to take the help of law due to wrong bills issued for payment and unnecessary tension, harassment to consumer