I followed all your instructions and attempted to download a book to my kindle but got the same message---"you do not have a valid credit card specefied for your Amazon.com account" I even tried addind a different credit card --a Visa.
I did all of that and still get the same message about my credit card needing to be set up!!!
I still can not download books to my kimble even though I did every thing that the expert said to do. I get you do not have a default credit cardspecified BUT I DO!!!
Optional Information: Model: Kindle 3.2.1What have you tried so far?: Everything the expert suggested.