Review on Heat Transfer Vinyl HTV 12"x10' PU Adhesive Iron SHOYISI Iron on Vinyl roll for T-Shirt in Maroon by Kelly Caballes

Let me start by saying that these are far from the first shirts I've made. I've been making all the t-shirts for our restaurant for a few months now, I have a heat press, no iron, and this vinyl *shit*. I followed the instructions exactly. Temperature 275-293, press 10-15 seconds. and when it didn't come off, I was like, okay, a few more seconds, that's not unusual. See the pictures I've attached. This vinyl does NOT heat up and does NOT stick like it should! I have NEVER had such a design, not even as a beginner who didn't know what he was doing! And of course Murphy's Law. I've waited too long and now I'm stuck with the whole damn roll because I can't get it back! Don't buy this stuff