I bought 2000 coins to use and used up 400 coins while playing. Came back to play two days later, and they magically disappeared--contacted tech support "twice" and never received a reply. Horrible customer service!
Update: 10/17 I finally received a reply. All they said was "Sorry, there is a glitch with the new iOS 7 and we cant do anything about it"--contact Apple for a refund.
bpolanco about Word Buster - Explosive Word Search Fun!