Indian Bank — indian bank refund request of declined transaction but amount debited from the account

Address:

Nolumbur, Chennai, Tamil Nadu, 600095

I have done shopping and tried paying with atm card but transaction shown declined so i paid using other card which was successful, but when i see in statement of account (Where transaction declined) the same transaction was successful and amount debited which is not supposed to be.in this case the amount should have been credited back automatically by bank which was not the case here. So i am requesting the refund of the same.

Amount:1121.34
Transaction seq: 90871
Transaction date: 28th march 2019