The shirt was working for a minute or two and it was accepted but then like 5 minutes later it got rejected. After it got rejected I was met with this message in my inbox;
What was the Description you used? Were there any references to something outside Roblox, including anything about your group?
I also wonder if having a word or words (your name ‘hidden’ on the bottom) would cause an issue. In the past I’ve heard of even simple single letter Decals being denied.
I’d suggest just not putting watermarks on your clothing. There’s no point, as any person who’s familiar with getpaint.net or any other simple image manipulation software can easily remove your watermarks.
Like MP3Face said, sharklier/whosproxy was probably misinterpreted as a URL, so this may help.