I'm glad your support person is helping you. I have not had ANY contact with mine since initially opening my case on 10/17. He worked with me for almost 2 hours then sent me an email with his phone number and, obviously, his email address. I have left many voicemails for him and sent several emails with absolutely no response, nothing! In my most recent email, I asked if there was someone else I should be working with, and if so, please provide me the contact information.
I haven't had time to sit on hold waiting for another support person then to have to through all the troubleshooting I did 2.5 weeks ago. Instead, I have been monitoring this site, and this thread specifricially, to see if there has been a solution.
I do suspect part of the problem is what I mentioned in my other post. I also wonder how much of it is the Mobile.me conversion. I noticed something in iCloud when I used the "find my iDevice". It has my old 3GS phone, my 4S, and two iPad2's (one of which is showing "Offline"). It seems when I converted to iCloud from Mobile.me, my iPad2 duplicated (I only have 1 iPad). I can understand the 3GS since I haven't officially wiped it clean yet, but why 2 iPad's? Could this be causing the conflict with the iCloud calendars and contacts? My iPhone 4S has absolutely no issues with contacts or calendars.