we have deemed export transaction in FY -2023-24, in our GSTR-1 we have declared the same as normal sale and now while applying for the GST refund when we are uploading the invoice in RFD-01 getting the error as "document is not a deemed export" now the time limit to amend the invoice is also over. request you o please suggest how to proceed further, whether any manual application need to be filed. we have all the necessary documents like disclaimer letter, invoices duly endorsed by customer, CA certificate in statement 5B, Form-A etc.