Your Android app requires a physical address to exist in the Google Play Store, it also requires this address to be displayed publicly in the Google Play Store. You can update this however do note the do's and don'ts:
Google does accept:
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A valid physical address
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Residential address
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Business address
Google doesn't accept:
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Invalid physical address. This needs to be a valid address as Google occasionally mails a verification code in order to validate the address
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PO box address
How to update your address:
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Log into your Google Play Console account
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Click Settings
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Click Developer account and in the dropdown menu that appears click Account details
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Locate the Physical address section and input your new address
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Click Save changes