With the account hidden behind a password-logon, we aren't able to verify that a legitimate site exists and can't upgrade the disk space as a result. Looking at the files directly however indicates the account is being used primarily for picture galleries; it's worth noting that the disk space could be increased once the password-logon is removed, but our Terms of Service does still limit image/video galleries to 500mb of space:
Personal Image and Video Galleries
Personal galleries are limited to 500MB of disk space for images and videos.
Even if the space itself were increased, you would still only have 500mb usable for the galleries.