Really bad! I paid for a starter pack and what i receive instead: all my rank progress was canceled and also imposible to advance! So, do not pay them, they will make your game imposible to play. Also, dont try to get gems by playing some other games they are advertising. They will take your money, i spent some to reach requirements, and will provide only email messages explaining that they aren't satisfied only with screen saver for proof. Ofc you cant show another proof. Thiefs!