One of our clients have incorrectly considered an inter state transaction as intra state and paid CGST SGST instead of IGST. Later , upon finding the error we had paid IGST amount seperately in subsequent GSTR 3B. However , upon filing for refund of CGST and SGST paid ;the offline utility available in their login asks for Order date and Order number . We have not received any order .
How do we now apply for refund of the extra CGST and SGST paid( Kindly note we had already paid IGST in subsequent month)?
TaxTMI