For app you have to send splash image, icon image(of the size of 2732*2732 ) and the main_logo of any size but all image should be in the format of png it's compulsary.
Share contact Form Details like address,social media link.
If you want to translate then also share the translation file:http://bit.ly/2SS2hhN
Also share the Transaction id.
Upload all document in google drive or one drive and make them public and share the link.