Uttar Pradesh Power Corporation [UPPCL] — Not refund of 11,800 processing fee after rejection of application

I applied for new electricity connection (Jhatpat connection)in my house
( Address : C/601 AWHO Bahadur Vihar Colony, Vrindavan awas yojna, Lucknow)
vide application form number [protected]
At step 3, the payment was shown as successful
Challan No: J55210442
Transaction Id:[protected]
Amount : 11, 800₹

At step 4 application was rejected as the load was incorrect but the processing fee was not refunded in the account.
It has been more than a month and still there is no refund of money (around 11thousand) in my account