The PAD file used in submission gives the Categoryand Subcategory, but for some reason it has not appeared in the listing. Perhaps software.informer.com can furnish an answer.
There is a For Developers page where you have all the information related to app submit procedure, support and other answered questions that are related to developers.
I recommend you visit the following link and check the information on the bottom. There is an email and support link that you can access.