Declined. But what category to choose?

I am new submitter to the Marketplace but gets declined. I want to modify my asset but I can’t figure in what way.
My asset is a content only Game Feature Plugin for the Lyra project.

Choosen category: Plugin
Response: This appears to be a content only project. If that is the case, then you will need to change the Category on your Product Page to Blueprints and provide a .uproject and config folder.

Then I made a blueprint project with .uproject and config folder and my content.
Response: Plugins must contain at least one module of C++ code but can contain content as well. Unfortunately, at this time we do not accept content only plugins to the marketplace.

When I choose plugin, they say it a content only project.
When I choose content only project, they say its a plugin.

Where do I contact Epic about marketplace content? They dont respond to email (uemarketplacesupport@epicgames.com), does Epic read this forum? Or is there somewhere else to make contant?

I will try adjusting my asset again, but at atm I am very unsure if I can change anything to get approved.

Hope someone here can help me.

It’s hard to get onto the marketplace in the beginning. I apologize for the generic answer, but I highly recommend that you read this entire page: Marketplace Support and this page: Marketplace Guidelines - Unreal Engine