I have an article here that can help you change the country in your App Store settings:
Change your iTunes Store country
Sign in to the account for the iTunes Store region you'd like to use. Tap Settings > iTunes & App Stores > Apple ID: > View Apple ID > Country/Region.
Follow the onscreen process to change your region, agree to the terms and conditions for the region if necessary, and then change your billing information.
Take care, and thanks for visiting the Apple Support Communities.