I think this is what is going on. You can only restore from an iCloud backup so many times before you are locked out of your ID for 90 days - if you used another Apple ID on the device previously in order to download past purchases without paying for them again.
Look at this discussion.
And this one
Apparently some users have had success in contacting iTunes Store support when they run into this issue.
this means that in the last 90 days you download past purchase from ANOTHER apple id other then the one you are using now. With itunes that have put this 90 dya block to stop everyone from sharing apple id purchases. You will have to wait 34 days intell you have redownload past purchases from another apple id
This looks like a known issue from years ago. It's a design flaw in IOS.
When you setup a new device, it asks for your iclould login. This login is used and entered into the iTunes store by default. Then, if you change the iTunes logging to the correct one, it locks you out.
This issue was caused by the following:
1. iTunes came out years ago. It requires an email.
2. MobileMe came out later and prevented everyone from usign the same email they used in iTunes. The default email was email@example.com of course. This design flaw, by definition, created two apple id's for everyone. Perhaps this is why Steve Jobs fired the mobileme product manager?
3. MobileMe becomes iCloud.
4. Since everyone has two appleid's, and apparently there is no way to merge them, everyone who sets up a new IOS device and enters their iCloud id will be setting their iTunes id up incorrectly by default. Users that then realize this and change iTunes to the correct apple id will be locked out for 90 days.
It seems to me this design flaw will affect every new iOS user who sets up a new device, has an iCloud account and a iTunes account.
What a cluster f.
More on this design flaw below.
This is really a problem. I've paid for extra iCloud storage. I've paid for iTunes Match. I've purchased thousands of dollars worth of music, books, and movies. For the next 90 days, I can't download any of this stuff to my iPad mini.
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Then you might want to contact iTunes Store support about the issue. Typically a user will see this problem if they have used multiple Apple ID's in order to download previously purchased content form another ID.
See if support can help you out. You can email them here.
To everyone else who have this issue, chatting with Apple Support they will grant you a "one time exception". Apparently this feature is meant to prevent friends from logging into each others devices and downloading each others purchases, but as has been mentioned hits people who have separate iCloud and iTunes accounts (everyone who used iTunes and iTools/.Mac/MobileMe prior to iCloud?) when you set up your new device with an iCloud account and then switch your stores to your iTunes ID.
It's extremely frustrating and would have been solved a long time ago had we been able to merge our accounts.
I've just experienced 3 rather painful days with iTunes support not listening to what I was telling them.
I have a brand new iPad Air and a Brand new iPhone 5s - there is simply no way a different Apple ID was used on these devices.
Because the only other ID on the device was the iCloud ID, I suggested that maybe there was a bug where the iCloud login got used as the iTunes login before I could enter my actual iTunes credentials - hence the device thinking a previous iTunes ID was previously used on the device.
The rep suggested that if I needed further support on this issue, that I should have my legal advisor contact Apple's litigation department!
Seriously, I was just trying to help figure out a potential bug as I know there was no other Apple ID on the device.
While that suggestion from that rep was the worst, many of the replies I received were characterised by reps (I tried two) ignoring what I was telling them and replying with links to terms and conditions or references to the legality of the situation.
Dealing with the iTunes support team is like dealing with a completely different company - what complete bummer!
This has everything to do with Apple's idiotic approach to IDs. I had an Apple "me" ID (what was I thinking), and then Apple killed me.com. Fortunately, I had already started using an ID less susceptible to Apple bait and switch tactics. BUT Apple has still never provided any means of migrating me.com accounts over to new IDs.
When I contacted Apple support regarding this, they emphasized, repeatedly, that there is no way to synchronize or unify the separate accounts.
Couple that with the fact that (1) books purchased via Apple are always more expensive than Amazon or others, and (2) that Apple's book features have gone nowhere (no improvements at all in the past 2 years), and there is really no reason whatsoever to buy books via Apple. Nor is there any reason to buy music or movies, both of which (again) are now more expensive than competitors.
Figure it out, Apple.
You didn't read the original question. The problem is that on iPads if you sign into your old account and download content, you can not sign into another acount and download content withing 90 days. So if you want to watch content from an old account you will have to wait 3 months before you can then watch content from the new account on the same iPad. Very frustrating.