After buying premium, the 'Cashed Up' achievement (Make an in-app purchase) doesn't unlock. Does it only unlock when you buy a map pack? If so, the description should be changed to reflect this. On Android. Risk Name is Nimble Force 8.
Achievements are currently disabled in many cases due to bugs. They will be reenabled in the future.
Didn't pop for buying the pirate maps either. Pretty disappointed; I was trying to complete all the achievements.
This achievement just randomly popped. It seems it's on a scheduled task. If it was done in the same logic that unlocks the map it would make more sense, since it would be immediate.