My approval went from 70% to 0% in one day... what happened? :( It seemed that, after I built an elevator too far away, everyone flocked to it, totally trashing the hall, and the janitors didn't get to it in time
If you lose on a level, it would probably be better to be sent back to the shop screen, rather than just replaying the level. It's too easy to get stuck on a level, just having to try over and over again with inadequate equipment.
If you have it happen again, you can put in a help ticket using the "Help and Support" link in the footer of the game.