This is not the normal free credit on Amazon. It gets you a code to pay $1.99 for an Amazon holiday MP3. It's good for one selected holiday title. Here is a list of holiday songs you'll be able to choose from. There are quite a few including Justin Beiber, Rod Stewart, Sting, and Charlie Brown. They will all be $1.99, not the price listed, if you request the code.
It's free to get the code, so no charge until you decide to make the $1.99 purchase. Make sure you check your email and follow the links and directions they give.
You must use your code by December 2, 2013.
NOTE: If you haven't requested your FREE $5 MP3 credit through Scott Shared Values, do that also! It's good on any MP3 purchase. You can also get free tickets to local entertainment attractions. It's worth signing up!