Delhi Development Authority [DDA] — Anomaly in water bill for DDARZ0018702

Sir, I purchased flat No. 780 Sector-28 Rohini at Pocket GH-1 and got it registered in my name on 06 Mar 20. Water connection No. is 67006 and consumer ID is DDARZ0018702. I got a bill of RS 23799 vide 787297 dated 23 Jul 20. Out of which RS. 21748 is reflected as previous due. As per the dealer payment of RS 21750 has been made in the first week of Mar 2020 but has not given me any receipt. I shifted to this flat on 05 Jun 20 and got this bill as surprise. Plz look into the matter. Payment if made, may plz be adjusted and fresh bill may be issued excluding previous dues. In case no payment has been made, the same may be intimated in your letterhead so that I can sue the dealer in court of law...