Dress Alteration Question

I recently my portraits taken and had someone take a couple of picture on their phone so I could get some advice. My dress has been altered in several ways but I’m still let with some bunching/wrinkling at the top due to the lining underneath. The seamstress at the dress shop said there wasn’t much more that could be done without changing the dress. The photographer can edit that for my portrait but I was really hoping for a solution for the wedding. Any ideas would be greatly appreciated because at this point, I don’t know why it’s like this or what to do!