Top games have created an interesting, interactive, challenging and very addictive game. Unfortunately the great design is let down by slow running, lag ,app crashing and very slow to respond customer services. Unfortunately these constant issues seriously spoil the gameplay. I have raised several tickets regarding issues and they are all ignored, or met with a generic, unhelpful, unrelated response, copied and pasted from a collection of useless replies. 3 months later: still not resolved