Q: I purchased books they were charged to my bank account, but they will not down load. Message says cant access istore

Hello, DozCo.

Thank you for the question.  These articles will help you troubleshoot the connection to the iTunes Store.

Can't connect to the iTunes Store

http://support.apple.com/kb/ts1368

iTunes: Advanced iTunes Store troubleshooting

http://support.apple.com/kb/TS3297

Once you are able to resolve the issue with connecting to the iTunes Store, you have access to all you prior purchases and can download them again free of charge.  This article will walk you through this process.

Downloading past purchases from the App Store, iBookstore, and iTunes Store

http://support.apple.com/kb/ht2519

Cheers,

Jason H.