@Erudes
Just tested and it works fine for me. It pulled my First + Last Name, my Email Address, and my Phone Number. I use default msad format and my attributes are named givenName, sn, mail, and telephoneNumber respectively. Note, it will only do this when it's creating the User in osTicket. If the User is already created in osTicket it will not sync/update the User's information.
What did you select as the LDAP Schema in the Plugin settings?
Cheers.