Why can I only download one song every 90 days?

Question

Everytime I try to download a song from my purchased it says one song every 90 days!

Answer 1

Hello, bridgeted. 
Thank you for visiting Apple Support Communities. 
It sounds like your computer has been associated with another Apple ID in the past 90 days.  Here is some information regarding this process. 
When you turn on iTunes Match or Automatic Downloads, or when you download past purchases on an iOS device or computer, that device or computer becomes associated with your Apple ID. Your Apple ID can have up to 10 devices and computers (combined) associated with it, with a maxium of 5 computers at any time. Each computer must also be authorized using the same Apple ID. Once a device or computer is associated with your Apple ID, you cannot associate that device or computer with another Apple ID for 90 days. You can view which devices or computers are currently associated with your Apple ID, remove unused devices or computers, and view how many days remain before the devices or computers can be associated with a different Apple ID from the Account Information page in iTunes on your computer:
iTunes Store: Associating a device or computer to your Apple ID
http://support.apple.com/kb/ht4627
Cheers,
Jason H.