Rejected invoice

Anshuman Basu (account -GST) (1556 Points)

22 November 2019  
sir
my company issue a invoice to our client in the month of August 19. but some technical problem our client rejected the said invoice.
we upload this invoice in our GSTR 1 in the month of August 19.

our client not ready to issue debit note because they not consider this invoice.

in this senerio how I rejected this invoice and how i correct gstr1