icloud Backups take up 2.4GB but I have nothing backed up

Good Day

I started using iCloud but i hanly have half the space available. Some Backups take up 2.4GB, problem is the Manage storage shows nothing inside those Backups and I don't have backup activiated for any of my iOS devices.

Where do these Backups come from and how can I get rid of them?

edit:

I solved the problem by again enable the backup of my iphone, apperently this was some leftover from a earlier backup, which couldn't be deleted.

But I still can't delete the new backup if I cancel it, so think there is still a problem. I will try again later, but it seems that 2.4GB game from an earlier backup, which never really worked.