Not downloading TV series - telling me I'm using a different Apple ID but I'm not

Question

I downloaded two episodes of a TV show ("Touch") to my iPad and watched them. I then paid for the rest of the season of the TV show as one purchase (on the same iPad) to get the discounted price. I then downloaded the next episode of the TV show on the same iPad and watched it with no problem. I then tried to download the next episode on the same iPad and the following message popped up:
"This device is already associated with an Apple ID. If you download past purchases with your Apple ID, you cannot auto-download or download your past purchase with a different ID for 90 days."
At the bottom of the pop-up message were two options: "Cancel" and "Transfer"
Whenever I press the download cloud, the blue circle appears, but this pop-up message pops up and the blue circle just spins and spins and does nothing else.
I had this problem once before when I tried to download a single episode of a different TV series. I contacted Apple Customer Support but they didn't understand that I had been using the same device and same Apple ID all along and I gave up on trying to figure out the problem. I think maybe I did create a different Apple ID like two years ago, but if I did, I have no idea what the username and password are.
I should also add that this is the first time I've tried to download an entire season of a series; however, my Apple records indicate that the entire series was purchased and all of the episodes are listed In the video storage app.
Does anyone have any idea about what's going on? If someone could help me with this problem, I would greatly appreciate it! Thank you in advance for any info anyone can provide!  

Answer 1

Apple ID's are not device specific, so when you changed it on the iPad 2 it changed it on the iPhone 4 as well, since it's the same account still. What you need to do is create a second Apple ID (so you'll have two accounts, one for iPhone 4 and a seperate one for iPad 2).
To create a new Apple ID on your iPad 2:
1) Go into Settings > Store.
2) If you are already signed in, tap your Apple ID on the screen and you will be given a few options, one of which is to sign out of your account.
3) After you sign out, now click the "Sign in" button.
4) Tap "Create New Apple ID" and follow the instructions on-screen.