Billdesk — Online Payment shows successful but not paid to APDCL

Address: Assam

I did payment through bill desk for APDCL RAPDR assam via Google pay. The payment are come successful ( Money deducted ) but not deduct in the next APDCL bill amount, previous amount is add in the new amount . Please help and return my money back
Payment ID and amount -
1. UPI Transection id[protected]
Date- 20Dec, 2020
Payment Gateway - assampower bill desk
Customer Id -
new[protected]
Old - [protected]
Name- SMTI PADUMI DAS
Invoice number[protected] Dec, 20 bill in which previous outstanding amount 2406.07 add even after i paid )
Payment mode - e payment received : 2406.07