Tamil Nadu Electricity Board [TNEB] — refund amount

I paid rs 4754 on 6/8/18 through icici payment gateway. Amount debited from account but bill not paid. Next day i pay amount in direct in office. Service no.[protected]. Trans no. [protected]. Till now amount is not credited. Kindly do needful. I sent below photo for information given by tneb website. I am very much depressed . I dont know to do and whom to ask. I think amount will be credited within two or three days. I was nearly eleven day but still now not credited. Kindly do needful