Fortnite: Can't purchase due to Country/Region lock?

I tried to buy V Bucks today & it gave me an error with this message Screenshot by Lightshot
I live in Miami USA. I made my account when I was visiting my girlfriend in Denmark, so now Denmark is set as the country on my account. I can’t seem to change the Country/Region.
Please help, I want to be able to purchase.

u will have to email them asking to change your country but it will take a long time