I submitted artwork for a contest for a print-on-demand online marketplace and 2 days later, I found that 2 different shop owners had taken my art,
![:eek:](https://www.designcontest.ca/forum/public/style_emoticons/default/eek.gif)
![:mad:](https://www.designcontest.ca/forum/public/style_emoticons/default/mad.gif)
I did not file a copyright before submitting my entry into the contest. Is my intellectual property still protected in this situation? Any recommendations on how I should approach the two vendors?