If you have no luck with a new replacement at any VW Commercial dealer,,,,,,, try your local Pirtec hose company (Derby road,near Millers bridge) but don't forget to take a sample of the sort of hose you are in need of.....
There are many places on line who supply servo hose it all depends up on what diameter hose you require.....
Regards
Fritz,,,,,,,,
One day you will find me,,
Driving in my Camper,
With a Surf and Paisley wrap on both sides....