If you log into the control panel as user, you will see that disk quota on the left shows 355/0 MB. It should shows 355/400 MB.
"quota" package is out of date and option '-r' is missing.
Update "quota" package
#yum update quota
Reset quota in the hsphere folder.
#quotaoff /hsphere #rm -f /hsphere/aquota.user #quotacheck -m /hsphere #quotaon /hsphere