I updated to ios7 yesterday. Since then the only custom ringtone that works is my wife's number which is another iPhone. Unfortunately I am not sure which of my other contacts have iPhones. All the other numbers in my contacts come up as the default ringtone although they have been edited and given custom ringtones. All the ringtones were bought from the Apple store. And they all seem to have synced across from my MacBook to my iPhone. What am I doing wrong.