Unwanted Samba Share - User Name

I have exported two samba shares, when I look in windows explorer I have another share called my User Name (Frank)
I don’t want it, cannot find where to dispose of it gently.
What humane method can I use to remove it?
Just starting with Rockstor to see if I can use it as a backup for my medis files,

So this seems to be a homes directory. You created a user called Frank? Edit the user and set “loginshell” to “/sbin/nologin” . imho this might be fix it.

Else give us

cat /etc/samba/smb.conf

from the shell.
BTW Rockstor version?