Deleted iTunes Match songs always reappear
I have deleted several thousands of songs stored in my iTunes Match.
I did it 999 songs at a time.
But, the 1500 remaining songs are impossible to delete.
I refreshed the iTunes Match.
I also waited several hours to let Apple servers sync.
But these songs always reappear!
I have the same phenomenon with the lists and smart lists.
MacBook Air, iOS 7.1.2