HI,
I wanted to share with you my discovery not sure if it is the solution or luck but I got approved by Instagram.
Basically, I Unlinked my domain by contacting IG support like Tumilu mentioned in one of his posts.
and connected it again with https://www.shutterjackphotography.com/
Looks like https:// was the problem because before they were mixed in Instagram was http:// and website was https://
Not sure if that is the solution or not but it worked for me!
Hope it does for you as well.