well thank you
but I want to add instagram to Contact Us
and there is no such option
I understand your problem. This is because i used 4 "hardcoded" fields for social media. So to fix this issue i deleted those fields from contactus block and for social media automatically gets social media you have inserted on theme settings on "Social Tab". So now you can insert your own social media.
I updated theme adding this feature. Update your theme to see this feature.
Let me know if that help you.