Ammended GSTR 1

Anshuman Basu (account -GST) (1556 Points)

10 August 2018  
In the month of June 18 we put wrong GSTN no in B2B sales Invoice. In July we want to ammended the wrong GSTN no but we Weould not ammended GSTR 1.

several times phone to Help Desk but they not slove. sir What to do