ITC related question

Bhat Mehvish (12 Points)

09 June 2020  
Sir
My question is if we purchase any goods from our supplier on full discount. i didn't take itz ITC in Gstr3b Because i didn't pay any tax to my supplier..
But my supplier has taken this bill and that bills ITC is reflected in my 2A .. what can i do in this situation? plz suggest