Actually you cannot change country settings until you have canceled your subscriptions and let them expire, so you must have done this yourself.
The article "Change your Apple ID country or region" describes how to change your country setting on everything using your Apple ID, and the requirements and results of doing this --> Change your Apple ID country or region - Apple Support
Click on this link to see how to view and mange subscriptions --> If you want to cancel a subscription from Apple - Apple Support
On an iPhone, iPad, or iPod touch
1. Open the Settings app.
2. Tap your name.
3. Tap Subscriptions.