1:00 PM -- fraud system links her account to another banned account

1:00 PM -- her account is closed

2:00 PM -- she asks Amazon why her account is closed

3:00 PM -- Amazon makes the statement you claim is libelous

The loss occurred before the statement, so you cannot claim the statement caused that loss. The alleged libel did not result in the damages you're claiming.

Libel would be if Amazon falsely accused her of fraud in public, then her employer terminating her employment as a result of that statement. That is a harm resulting from the statement.