All free inactive accounts get deleted after 2 months of inactivity. The action is made by the system and is irreversible. User might get notified about account deletion 7 days before this happens through the e-mail address they use on minerstat dashboard.
If you get an e-mail saying your account will get deleted, you can prevent that by logging in to your minerstat account. However, keep in mind that the system will notify you only once. If you want to keep your free account, you should use it (at least login to it) at least once every 2 months.
Once your account gets deleted, you can register a new account with the same e-mail address, but your new access key will be different than the old one.
Paying accounts do not get deleted by the system if they are inactive.
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