Uttar Pradesh Power Corporation [UPPCL] — Need justification on Extra Amount in Bill

Address:

Noida sector 108

The month of August bill was generated and an extra amount of 1259 been added, I went to the subdivision office for clarification but they don't take ownership and said it is a system-generated bill, I asked to explain the breakup of the amount and why 1259 INR has been added extra in the current bill. And the worst thing is they said this is the check bounce charge even I did not pay by check.
I have the recipient of the last payment which is been paid through UPI.

Below is the detail :
Account no - [protected]
Consumer name: Neelam Chauhan
Mob - [protected]