I submitted 2 tee shirts and they both got rejected for copyright/trademark violations. There wasn't anything special about them 2 football style shirts with a number on the top right the words "russia 2018" on the top left and on the bottom i had written Brazil with the Brazilian flag as a clipping mask and a mock up of the world cup.
Here are all the things i used(all of these are public domain or under cc0)(i guess its the font or world cup trophy mock up):
World cup trophy: https://pixabay.com/en/world-cup-soccer-gold-sports-41953/
I just want to know what is it that i violated. And why is it that i did not get any information on what was copyrighted/trademarked.