When the switch to iCloud began, Apple offered MobileMe users an extra 20GB on top of the free 5GB — giving them a total of 25GB of iCloud storage. Apple, however, extended this offer, and then extended it again until September 30, 2013. Upon this date, former subscribers of the service will be downgraded to the regular 5GB of iCloud storage. Apple recently sent the following email to all MobileMe users:
As a thank you for being a former MobileMe member, you received a 20 GB complimentary storage upgrade when you moved to iCloud. Your upgrade expires on September 30, 2013.
When it expires, your iCloud storage will be automatically adjusted to the free 5 GB plan…If you exceed your storage plan on September 30, 2013, iCloud Backup, Documents in the Cloud, and iCloud Mail will temporarily stop working.
To help users avoid the headache of switching services, Apple has given simple instructions on how to upgrade your storage plan. This info details how to purchase an additional 10GB of iCloud storage for $20/year, 20GB for $40/year, or 50GB for $100/year.