I accessed my revenue page earlier and the start date was set at 4th April. I reset it to the 1st to record my sales and the figures for copies of my free book, Blood Money differed. With the days set at the 4th it showed eighteen downloads in the US, but set to the 1st, they disappeared. This happened with a few other copies of this book too in India. Because they are free books, I'm not too concerned, but could this have been happening in the past with my paid books? I have contacted the admins and await reply.