Bangalore Electricity Supply Company Limited [BESCOM] — payment done twice a month (july)

Address:

104,8th cross, jai bhubaneshwari nagar,kr puram

At first i paid rs.873 on1st july, 2020 for jun 2- jul 1, 2020 bill but that transaction was failed and money not refunded. Again i paid rs. 1577 for both june & july bill on 7th july, 2020. Today i got to know that mine 1st transaction amount already credited to the bescom. So i paid june's electricity bill twice. Now how i want my refund money back. Please check this problem and let me know. Thank you