Stop scheduling lotteries that end during scheduled server down-time!!
Two of my characters won the Taste of Bree but, of course, didn't get the winnings due to the servers being down when the lottery ended. One of my characters had the same thing happen with the Skirmish Starter lottery. I was really looking forward to picking up that cheese because I have never been lucky enough to find it randomly and I would love the title you get from eating it.
Since you KNOW that the servers are always down for maintenance at the same time every week, why would you schedule lotteries to end during that window of time? I could forgive it if the server unexpectedly went down and made it impossible to reward winnings of lotteries ending at that time. But this was something you KNEW would happen.
I have submitted a ticket asking for my winnings to be rewarded. It can be verified that some of my characters won lotteries that ended during the server maintenance so I don't see any reason my request would be denied.