Levels impossible to complete without purchasing...

Not loving these hard levels that are impossible to beat without purchasing some sort of booster pkg. We already have limited friends with lives and I'm currently on a level with 18 moves and haven't even come close to completing it after days of trying. I can purchase the $2.99 deal for 30 minutes but it's ridiculous that I should have too in order to try and complete a level. Let me used my lives from friends and not force me to buy unlimited time and boosters is my thought on this. The game isn't any fun when you blow through the regular and saved lives in 8 minutes.