Are there any requirements for the username to be valid? Yes, a username is valid if it satisfies these two requirements: There could be exceptions, for instance, the username needs...
Why did I not receive the account activation code by email? Following are the common reasons: There could be a typo in the address set as reset/notification address. Please click on...
Why did the account registration fail? If your account registration failed, following are some possible explanations: We deploy anti-abuse measures to avoid abuse by scammers/spammers. This...