If that's true, they shouldn't be surprised Ubuntu wants a license fee... it says so in their trademark policy:
- You can make changes to Ubuntu for your own personal use or for your organisation’s own internal use.
- You can redistribute Ubuntu, but only where there has been no modification to it.
- Any redistribution of modified versions of Ubuntu must be approved, certified or provided by Canonical if you are going to associate it with the Trademarks. Otherwise you must remove and replace the Trademarks and will need to recompile the source code to create your own binaries. This does not affect your rights under any open source licence applicable to any of the components of Ubuntu. If you need us to approve, certify or provide modified versions for redistribution you will require a licence agreement from Canonical, for which you may be required to pay.
http://www.ubuntu.com/legal/terms-and-policies/intellectual-...