have two I797 approvals:1 for Extension,1 for Amendment with different names

1 for Extension I797 my name is written LNU, ABC, and 1 for Amendment-- my name is appearing FNU, ABC. my name is correct in amendment as per my Existing Visa stamp in my passport. I am going for Visa stamping through drop box (as I am eligible). Can I submit my approved i797 for Amendment for my visa stamping. the visa approved dates are different on both approvals. For Extension approved until 5 Sep 2018 and for amendment it is approved for June 29, 2018. is there any issue?

is there any issue with h4 approval as H4 is approved until 5 Sep 2018.

Please suggest me, I have to travel next month to India. Thanks