Hi John and welcome to the Diabetes.co.uk forum.
This forum has no connection with the registered charity Diabetes UK, other than many of the regular contributors here also being members of DUK. The charity has steadfastly refused to run a forum on the grounds that they encourage interaction between their members via their Balance magazine, i.e. they want input from paying members only. Hardly a way to encourage new members to join!
In answer to "why aren't you linked" - they are a charity whereas this website is a commercial operation. Just like you and countless others, I found this forum by chance and believe that it provides a fantastic service to the diabetic community. In fact the sort of service that DUK should but abjectly fails to do.