If user disk space usage is reflected incorrectly in cPanel, there is a way to force refresh the disk quota of cpanel directly from cPanel.
We will be able to remedy this by refreshing the cPanel cache for this user. This can be done by removing the /home/username/.cpanel/datastore directory, which will be recreated upon the next access of that account’s cPanel.
1. Login to cpanel->file manager -> ensure show hidden file is enabled.
2. Go to /home/username/.cpanel
3. Rename datastore/ to something else
4. Then click disk space usage, it will force refresh the usage
If you require help, contact SupportPRO Server Admin