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Is the casino account not linked to the user's email, as far as we know, the settings do not allow you to change your email, so what's the point of a casino account without access to email, unless registration was made to a clean email address.
However, purchasing such an account is illegal. which should not be allowed. But if someone does that illegal work then he must take the email access of that account. Otherwise it is true that he will lose his account at any time. As soon as possible after purchasing the account, should be reset the security pass code.