You can't directly change the country linked to your current Google Payments profile because for tax and billing reasons, each profile is always linked to a single country.
To change your location, you'll need to make a new payments profile. To do this, go to payments.google.com, click on Settings, then edit Country/Region.
Make a new profile, pick the right country, enter your address, and click "Submit."
If you want to use the new profile for payments, go back to Settings and make it your current profile. Then, add a payment method from your new country.
Because subscriptions like Google One can't be moved between profiles, you'll need to end your plan on the old profile and then resubscribe on the new profile once your country is changed.
If Google One still shows the wrong country, either delete the app's cache and data or load it again to make it connect to your payments profile.
Last, wait a few hours or up to 48 hours for Google to fully understand your new country profile and currency settings.
This is the information we have, but if you have more insights from your experience, please share in the comments.
Related Complaints
Google One 2TB Storage Price Jumped from 60 to 204

Last month, I subscribed to Google One 2TB storage for ₺60 per month, but this month, I received a notification saying the price has jumped to ₺204! A slight increase due to currency fluctuations might be understandable, but this is outrageous. A fair adjustment would be ₺75-80, but ₺204 is beyond r...

