Quote:
Originally Posted by CrazyMoon117
Thank you so much, bgalbrecht! That was the answer. I had no idea you couldn't use the codes on all books, though it seems quite obvious now. Sadly a lot of the books I've been wanting to buy aren't eligible for promo codes. At least I know now. 
|
There is some great concise information about this in the first post of this thread:
https://www.mobileread.com/forums/sho...d.php?t=115233.