On the CD/DVD's vendors page here <https://www.debian.org/CD/vendors/>, the last vendor based in South Africa does not have a valid existing domain name anymore and I suggest your remove it.
This is the no-longer existing Vendor's domain name: http://www.linuxos.co.za/ -- To UNSUBSCRIBE, email to debian-project-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/1439125742.30491.1.ca...@gmail.com