If I win I am not sure how I can transfer the $10 to my account though.
1) after you receive the scan go to Apple customer service:
http://www.apple.com/support/itunes/contact/
2) click on itunes store support
https://getsupport.apple.com/Issues.action
3) click on itunes codes and cards
4) click on itunes card code is not readable
5) depending on how busy they are you will have various options, I suggest you used the email or chat option.
6) complete their information checklist as best you can
a) Your contact information
b) this is for USA itunes only
c) Activation code (enter as much of the code as possible):
d) iTunes Card serial number:
e) How do I find my serial number?
Purchased from: [I will give you that info with the purchase]
f) Briefly provide any other details you think we need to know: