I sent editorial images with trademark and without recognizable people, some were accepted and others refused for reason "File is not illustrative editorial". I have normally resubmitted these same images and they have been refused for "violation of the Intellectual Property Code". I sent a message to support explaining the problem to them and here is their response:

"Thank you for contacting us. Currently, we are not accepting editorial submissions from individual contributors. This is by invitation only.

Unless you have been invited by our Editorial team to submit these type of files, you won't be able to sell them through our site for now.

If you have any questions, or to update your case, simply respond to this email. "