Who to connect in filezilla with provided ftp credentials ?

Hello,
From my client I received ftp account and sample listing, that credentials are valid:

ubuntu@ip-CLIENT_IP:~$ ftp CLIENT.REMOTE.SERVER
Connected to CLIENT.REMOTE.SERVER.
220 ProFTPD Server (ProFTPD) [CLIENT.SERVER.IP]
Name (CLIENT.REMOTE.SERVER:ubuntu): SERVERUSER
331 Password required for SERVERUSER
Password:
230 User SERVERUSER logged in
Remote system type is UNIX.
Using binary mode to transfer files.
ftp> ls
200 PORT command successful
150 Opening BINARY mode data connection...

Code (markup):

Who to connect in filezilla with provided ftp credentials ?

from Site & Server Administration https://ift.tt/2Fl1zXC
via IFTTT