About the Audible and AudioFeast files that come with the Sansa e100

OK, I know that those who own any either the e130 and e140 of the Sansa e100 MP3 players know that they each come loaded with 5 files (one AudioFeast and 4 Audible.com files).

I accidentally deleted them. Is there any way I can get them back onto my player? (And is this a question that Customer Service can handle?)