You can find your team id here:
https://developer.apple.com/account/#/membership
This will get you to your Membership Details, just scroll down to Team ID
erpragatisingh
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1) Go to app connect
https://appstoreconnect.apple.com/apps
2)Price and availability
https://appstoreconnect.apple.com/apps/1507806314/appstore/pricing
3) For hide from store select "Remove from sale" and when you want to publish select "Availability regions (0 of 175 countries or regions)