If your app store shows a different currency than your location you can try reset the shop content through the settings page.
From the Store screen, open the main menu and tap “Settings”
Scroll down the bottom and tap “Clear Shop cache”
Confirm you wish to do this by tapping “Clear”
Exit the app and return back to the app home screen.
It should now show the currency and content of your country store.
If it has not changed to the correct currency it may be an issue with the location settings on your device.