Originally Posted by digiSara
Kobo doesn't have the function to buy multiple books.
The small print from Kobo: Discount code is valid for $1 off up to 3 eBook purchases excluding eBooks from HarperCollins UK, Hachette, Grand Central, Warner, and Little Brown.
So you buy one book at a time - and get $1 off each one.
Makes sense. I'll change it in the OP.