I have an issue where my iCloud Drive claims to be full. It reports my current usage as being "59GB of 50GB". This is reported on my iPhone 6S and MacBook Pro. I have a 50GB plan for 0.99c a month. But what I don't understand is that it doesn't add up. The main thing I use it for is Documents and Data. This accounts for 30GB. I don't use Photo Stream or iCloud Photo Library. I don't use iCloud iPhone backups, I backup to my mac. Mail only accounts for 21.2MB. I do pay for Apple Music, but iCloud music library is turned off. (Tried setting it up twice but didn't work. Plan to retry when I have time.) So what is it? Does anyone have any ideas where this magic extra 29GB of usage is coming from?