Vadodara Gas Limited — Bill paid timely but still charged penalty

Address: Vadodara Gas Limited, Dandiya Bazar, Vadodara 390001

Website: www.vgl.co.in / [email protected]

I had received bill of Rs 1622/- for my consumer no 3581903 dated 21.11.23 and I paid it on 02.03.23 (Before due date 05.12.23). But Today 03.12.23 VGL person raised another bill of penalty + minimum charges= Rs. 655/-.
How can VGL raise 2 bills in gap of just 12 days and that is even after timely payment?