A lot of people think you only get one format, and one alone when you buy from ARe.
I did too until I just happened to stumble upon it when I got so fed up that I couldn't get the pdf and epub.
I guess you (or some people) say, "Well if people weren't so lazy, they could find it too!!" And um, no. It's not that simple. ARe is truly a confusing site sometimes. I still don't know every nook and cranny I only know how to report a problem and reset the formats I want. (now..)
So if you're one of those people that needs help figuring out their site, here is how you get multiple formats from ARe!
YOU HAVE TO DO THIS FOR EVERY SINGLE FORMAT YOU WANT...After your initial download.
So if you get pdf, but also want epub & mobi, you'll have to do this/follow these instructions twice!