Registering as a developer

Hi,
I’m trying to register a new account at WP-Lister to link to my Amazon account (Australia). I’m being asked for the MWS Auth Token.

I was trying to register as a developer to get this token but it makes more sense to me that WP-Lister is already registered and it has it own Developer Name and Developer ID.

I’m aware that the process to do this has changed for Australia since the last time I used it, since I didn’t need to do all this to get the MWS Auth Token.

Thank you