I received an error message from iTunes store regarding my recent app purchase. I already have 5 authorized computers so I can't sync the purchased app from my current computer.
My problem is, within four months I replaced the operating systems to my desktop and laptop. As for the other 3 authorized computers are long gone (when I didn't understand I had to deauthorize computers).
Can someone help me with this problem? I can't get internet at my home so I have to go to the local library or coffee house and get wifi, so I need to access my itunes from my laptop. How can I reset these accounts so I can keep the two I need?