I inadvertently reached my limit of authorized computers in iTunes, and now I cannot sync my iPhone. I tried to deauthorize all, but itunes claims I used the option last July. I don't remember, honestly, but I might have. Unfortunately I forgot to properly deauthorize my old computers (I wiped them clean) and now I'm stuck. Is there any option for this? Would Apple support be able to help me? A genius bar appointment? Is there a department I could call? I really need to restore my iPhone from a back up I have on my computer. Thanks in advance for any help or advice.