iCloud Photo Library deletion in 30 days

Hi,

I wanted to clean up my iPhoto Library (from iCloud) and now it says it wants to delete everything within 30 days.

In Photo's on my Mac, it says that i can cancel that action from within the iCloud panel in Settings.

But there are no options in there to do so.

How do i cancel the deletion, because i want to first make a backup?

Regards,

Rick