Uhhh... my visiting/friend response log says that people have sent me ~5 tower building plans (it is the only requested item queued), but the quest itself says 2/20. I quit the game, then started again, yet it is still 2/20. Do other people have this problem as well?
Also, could we please have less "visit 50 kingdoms" in future events, because ugh! I have crashed and restarted my game some 30+ times this morning. Yes, I did the "visit low level kingdoms etc" tricks.