Welcome to Videohive mylitter,
Please mail me from my profile page so I can help you with it.
You can contact envato support for the price change if you want.
Mostly they make the changes you want.
I have watched your project and I think the price is as it should be.
Just my opinion.
In most cases a higher price will cause lower sales.
But it’s up to you.
Wish you the best.
Feel free to contact me from my profile page.