How do I go about obtaining a protoype toy from Bandai when licensed by DC Comics?

I asked this question before–How do I go about buying a prototype toy from Bandai which they showcased at the Toyfare but cancelled the line before it came out.

Someone stated that it’s hard to obtain a prototype like that because they’re not the manufacturers and the manufacturers own the license to sell. I’m guessing DC Comics is the manufacturer since the toys are DC Comics characters. Can anyone help on how I go about trying to buy a prototype toy from the manufacturer of DC?