Downgrading from 4 to 2 stars

Adding an extra 15 Points for every hand when one Knocks is not part of the usual official rules and makes the game extremely frustrating. I give it one star for the great graphics and ability to play on i-phone.I play both as a guest and FB member and as the latter especially I find their way too many hands where players knock on the first or second hand. Once in a while I get that privilege but its way too infrequent and when my score gets to a certain point it seems like in almost every hand the opponent Knocks within one or two plays. So Im starting to think like some of those who wrote reviews of one star that this is not random and perhaps another way for the game to try to get people to buy coins. It is too frustrating and tother games that play go by the scoring rules and seem more random in the deals and therefore I am eliminating the game until I hear the scoring rules have changed. Life is too short to be frustrated in this way.

itasarah about Grand Gin Rummy: Fun Card Game, v1.2.4