I upgraded my 7 Plus to the X and set up my X from iCloud back up. Last night it did not complete its first back up due to not enough iCloud storage. So I went into my iCloud settings and deleted the my old 7 Plus back up and now there are none listed, however it still says backups is taking up 5.5GB of my iCloud storage. Any idea on how I can fix this? I want the 5.5GB back up deleted and freed up so I have room for my new phone to back up.