I apologize in advance for the lengthy description.
We recently went back to Time Warner after a year with Uverse. When I tried to install the Time Warner app on Xbox 360, I inadvertently entered my old user name and password. Of course, I eventually got a message saying my subscription had expired, but I have been unable to enter my new information into the app. I have uninstalled and re-installed to see if I could start the process over: no luck. I called TWC tech support, as instructed in the error message, and was told that it's a problem they don't know how to fix.
This can't be rocket science. Can someone help me? I very much appreciate it.