I got this message when I logged in the other day. To my surprise when it finally loaded I had double the amount of gems as before. Then I went to purchase the 20% Atk relic and the game crashed. When I started it back up, again double the amount of gems. I went from like 40 gems to 240+ in the matter of minutes. Not sure what happened but I am not complaining. Purchased the relic again, this time it went through as well as the first, so it deducted 120 from the 240+ and I got two relics. Basically I ended up getting 4 20% relics for free.