Since it sounds like they legally trademarked their app's name and brand then it's best to get an attorney involved and not wait around for Apple. Competition

Since it sounds like they legally trademarked their app's name and brand then it's best to get an attorney involved and not wait around for Apple. Competition and copycats exist - users have an appetite for new stuff and quality apps. Apps can be disposable - the average user has something like 64 apps on their device. So the trick now is to make the app far better than the copycats and to get it back up on the charts.