If the refund status is ‘Refund Returned’ then you need to apply again for the refund. Simply login to your income tax account, click on ‘My Account’ and go to ‘Service Request’. Select the request type as new request. Go to the ‘Request Category’ and select ‘Refund Reissue’. In the screen you will see the PAN, Return Type, Assessment Year (A.Y), Acknowledgement No, Communication Reference Number, Reason for Refund Failure and Response. Verify these details and click on ‘Submit’. Lastly, select the bank account to which you want the refund credit.