The maximum number of free accounts have been activated on this iPad
We're using a number of iPad Minis in a lab environment to train students and volunteers.
We're receiving the message "The maximum number of free accounts have been activated on this iPad" after three accounts have been created on an iPad. Since we have a new group of students every 4 to 8 weeks, we need to find a way to allow free accounts, and we don't want to require students to provide credit cards.
We've looked at the work around to go to iTunes, Quick Links and Redeem, but that's a little messy for hundreds of students a month.
Is there a way to remove the association between the free accounts and the iPad serial number?
A couple of notes:
1. We can set them up under AppleID.apple.com, but as soon as we try to load a Free app (all the apps we use are free), it prompts for a credit card number and won't let them continue.
2. There is not a "None" option on the credit cards, as least for the apps we're using. Is this option app specific, or is this a feature that comes and goes, based on Apple's changing policies?
3. The iPads are in DEP and are managed via Maas 360
iPad Mini, iOS 8.3