Help needed to mount EX4 as read/write from Linux

this will mount it:
sudo mount -t cifs -o username=habskilla,password=xxxx,rw // /mnt/NAS

but then:
habskilla@ubuntu:/mnt/NAS/Movies$ touch test
touch: cannot touch ‘test’: Permission denied

What is the proper way to mount it r/w?

might need to add an appropriate umask to the mount options…

Changed the command to:
sudo mount -t cifs // /mnt/NAS -o username=habskilla,password=xxxx,rw,iocharset=utf8,file_mode=0777,dir_mode=0777

and now I have r/w access.