Please note that the currency depends on the region (on Android, this also depends on the Language) of the device on which you last logged in. To change your currency, please follow these instructions:

For Windows 10/11: 
1. Select Start > Settings > Time & Language > Language & Region.
2. Under Country or region, select your new region.

iOS: 
Go to Settings > General > Language & Region > Region.

Android: 
1. On your Android device, open the Google Play Store app. 
2. At the top right, tap the profile icon.
3. Tap Settings > General > Account and device preferences > Country and profiles.
4. To change countries, tap the name of the one you want to change to.

The exact steps might vary slightly depending on your Android device model or operating system version. You may need to navigate through additional menus or settings options.

If no language is added, the system usually defaults to English US. For some languages such as English, which can be spoken in different countries, or which have dialects, you can select a Region.