Hi Yael,

I don't think there is much you can do about it other than chalk it up it experience

I do agree that its wrong though, and it might be worth emailing Ebay about it.

I think that by wording it this way, i.e.
Once you have made your payment e-mail me with details of how payment was made & whether you would like to receive your purchase by e-mail or mailed through Australia Post on a CD
they've trid to cover themselves, cos if the payment was only if you wanted it sent on CD, it would have said to email when you've won the auction but before payment.

I wouldn't bother emailing the seller about it at all, if you want to sdo something i'd report them to ebay.