WGA Locked credits on Snowpiercer are incomplete and in the wrong order

I tried to correct the writers credits for Snowpiercer (2013) but they are WGA locked. They are not in the correct order and not as shown on screen.

Here's how the credits should appear:

Lob, Jacques                (based on "Le Transperceneige" by)              1,1,1
Legrand, Benjamin (I)   (based on "Le Transperceneige" by)              1,1,2
Rochette, Jean-Marc    (based on "Le Transperceneige" by)              1,2,1
Joon Ho, Bong              (screen story by)                                             2,1,1
Joon Ho, Bong              (screenplay by)                                               3,1,1
Masterson, Kelly           (screenplay by)                                               3,2,1