Log in to each new account from a new IP address and various browsers (if you use specialized software, you need to make sure that it works and is safe to use). Authorization in accounts in countries with IP addresses that do not coincide with the registration of IP addresses of the account is at your own risk and if you abuse it, Google may request SMS or block the account, claims will not be accepted. When working with accounts, do not use free and cheap proxy services, various browser extensions and related tools that increase the likelihood of blocking an account both when logging in and when working with it! When you first log in, you may be asked to enter additional data that is attached to the accounts.
Checking the goods immediately after their purchase (bought - checked everything or selectively, if there is no way to check all the goods at once. If there are problems with the goods - invalid, blocked, etc. accounts, you inform immediately, and not after an hour, and so on in progress If you notify or decided to report a problem product immediately and later - the responsibility for the purchased product is already yours and the product cannot be replaced or refunded. The time for checking the product after purchase is 24 hours, then complaints regarding the problem of the goods will not. Buy the amount of goods that will be able to check the deadline)
It is forbidden to use accounts for purposes that violate the laws of the United States, Russia and other countries.