Billdesk — payment failed of rs 6442 and money deducted

Address:

Patna, Bihar, 800007

On 17 may, i paid my electricity bill of rs 6442 to south bihar power distribution through tez application by upi payment method, but payment failed and my money rs 6442 was deducted
Then, i called tez customer care they told me, they have passed my money to bill desk for payment and the bill desk has failed the payment.. So that my money was holded to bill desk not tez...

Now what i do to get my money refunded please suggest me... Now i have to pay extra money as fine for bill payment

Reply soon please

Shubham kumar