Trouble changing my account region to access the correct shop

I need to change my region in order to access the shop and purchase a WoW pack so that I can play with friends. Currently I can’t access the bundle I’m interested in because I am shown the NA page, also I’m worried I’d subscribe to an american subscription. I moved years ago but it’s been quite difficult to change my region, I have an opened ticket but no reply and I’d just like to purchase WoW and play. Any help or feedback would be welcomed.