I just placed an order with the intention of using my commission...It didn't work. I didn't even see an option for it. I attempted it a few times and in a couple different browsers. When I proceeded through the steps on Firefox, the screen looked different as I went on...I don't know how to explain it. It almost seemed like a glitch. There was less structure to the page, like a more simplified version of checkout. The option to apply part of my commission never appeared...I ended up paying with a credit card instead. What's the deal?