Tamil Nadu Electricity Board [TNEB] — Please refund my amount for filing bill amount...

I paid bill amount of 3 differtnt consumer numbers from my indian bank net banking but its failed...but is debited from my account...
here attached statement for your reference..

Your A/c XXXX36 is debited by Rs. 800.00 for TNEB payment thru Net Banking - ref: [protected] - 18/07/2022 10:38 - Indian Bank

Your A/c XXXX178636 is debited by Rs. 890.00 for TNEB payment thru Net Banking - ref: [protected] - 18/07/2022 10:50 - Indian Bank

Your A/c XXXX178636 is debited by Rs. 200.00 for TNEB payment thru Net Banking - ref: [protected] - 18/07/2022 11:39 - Indian Bank