Same here. I'm not getting the pop-ups anymore. They were driving me crazy for awhile there, but haven't had any in awhile. Hmmm...wonder why?
I, too was upset that I got boosts as rewards for my keys instead of gems in Candy Blast Mania. With gems you can choose extra moves, or a boost you might want/need. Last time they gave me the "Super Sweet boost", which you get for free (recharges every 12 hours.) I rarely use it, so when I earned mine from the challenge keys, I already had one. That brought my total to 2. When I finally used one, the game assumed it was the one from the keys, so it didn't start the 12 hr. clock. So it was just a big waste. I'm not happy with this way of rewarding challenges. Please give me gems/gold--prime currency for the game!