Cdearth.com Returned the cds they sent in the time limit -still are charging my debit card Internet

The email I received from CDEarth:

Thank you for trying our software.
>
> We just received your CDs on 11/18/2008. As explained on the cancellation page and in the cancellation email you received from us on 11/12/2008, due to this special offer we must receive the CDs back within 15 days after you cancel.
>
> We received your CDs 5 day(s) after you cancelled.
> We, therefore, conveniently billed you for the CDs.
>
> Please contact us so we can reship the CDs back to you. Ask our friendly Customer Service to waive the shipping & processing fee!
>
> If we can be of further assistance, please don't hesitate to contact us. Our friendly Customer Service associates are available 24 hours a day, 7 days a week and may be reached at one of the phone numbers below.
>
> Have a great day,
>
> CD Earth Customer Service
> help@cdearth.com

My email by return mail:
This doesn't even make any sense. You tell me that you must receive the cds within 15 days of cancellation and you tell me you received them within 5 days and yet you are going to bill me for them. I better get a refund on my debit card ASAP or you are asking for trouble. Do not ship the cds back - we do not want them. I can't believe this - what kind of business tactics is this.

>

Stevie
Elberta, Alabama
U.S.A.