I have 25Gb iCloud storage, from upgrading from MobileMe. But my iDisk is only allocated 5GB of this storage and can't find anyway to increase it! Anybody have any ideas?
I had the same problem, rang Apple and was told to >settings>iCloud>and change my Account name and password to the @me one I had from mobile me on my iPhone, that fixed it. You may need to check that all your devices are using the @me account.
Hope that helps.