Why won't the iTunes app on the iPad and iPhone let me shut off new download email notifications?

Question

I have a few new season passes.  Each one came, of course, with email notifications of new episodes.  I'm able to turn those notifications off through the iTunes store interface on my laptop.  But when I try to shut them off on my iPhone or iPad, the app lets me get all the way to toggling the notification option to "off" and pressing "done" before saying that the iTunes store "cannot process [my] request at this time." 
Here's what I've done to try and fix the issue so far:
1. Logged out of, and back into, my account on the iTunes store;
2. Turned my iOS devices off and back on again;
3. Made sure my iOS and iTunes software was completely up to date; and
4. Contacted Apple customer support.
That last option produced the following advice from Apple's representatives:
A. Log out of, and back into, your account on the iTunes store;
B. Turn your iOS devices off and back on again;
C. Update iTunes to the latest version;
D. Update your iPad and iPhone to the latest iOS version;
E. Use another app that does the same thing as iTunes;
F. Uninstall and re-install the iTunes app; and
G. Let us know if the problem persists.
When I let Apple know that (1) my account functions just fine on the full iTunes program, (2) the software on my devices is completely up to date, (3) both iOS devices continued to suffer the same problem after multiple restarts, and (4) options E-F don't appear to be possible without jailbreaking, a representative referred me to Apple's webpages on generic iPad troubleshooting.  She also admonished me not to jailbreak my iPhone or iPad because they'd then be jailbroken---and that's bad.
Has anyone else encountered this problem?  How did you fix it?  Apart from just using the full iTunes program, that is---I don't take my laptop on the road with me when I travel, which can be for weeks at a time, so I'd like to be able to shut these notifications off through the app interface if at all possible.
Thanks very much for your help and suggestions!

Answer 1

What does " the computer will still not sync to my ipad." mean?
What have you tried?
What was the result?
Error message?
What did it say?