Auction UC - Manage Account

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1.1 Brief Description
The Manage Account use case allows the User to update the user information maintained in the User's account, or to deactivate the User's account.
When modifying the account, the entered information is validated and stored in the User's account.
If new credit card information is entered, the system attempts to pay any pending payment notices via the Credit Service Bureau.
If there are any auctions in progress for the account, or the User has any pending payments, the account cannot be deactivated.
A deactivated account is not deleted from the system (it may be needed later for auditing purposes), but it cannot be accessed by the User. Thus, a deactivated account cannot be used to sign in. Deactivated user accounts are removed by a separate archiving process (see the Archive Deactivated Items use case). A new account with the same username cannot be reused until the “old” user account is archived.
The User must be signed in in order to update his/her account. See the Sign In use case.
For information on how a user account is created, see the Create Account use case.