B2B as B2C sales Urgent

Sravan Reddy G (CA) (618 Points)

10 January 2019  
dear sir
please help me

I had filled last year 2017_18 ,one of debtor as B2C but he is B2B.
Now he was asking me that credit
what to do


last year sales was not getting Ammended in Amend B2C tab in GSTR1

.

please help me urgent