Something needs to change – Mahjong game Review

Ever since the upgrade I am unable to get rid of all the tiles. It's as if there are some left without pairs deliberately, and it's quite frustrating. If this isn't fixed soon I am going to delete this app and find a new one like this. Also there should be different settings or levels. I'm very disappointed with this. I know its a free app, but come on.
Review by Msliss97 on Mahjong game.