Got the truck back with the new and improved repair on the turbo hose. I hope this one makes it past day 21.
Despite what most people say about dealers I have to hand it to the guys in the workshop - they are at least thinking about the problem and coming up with solutions.
Attached is a picture of the repair. They have restrained the hose in a few locations with cable ties to force it to bend out of the way of the alternator pulley. They have also fitted a protective cover.
Now that I know that it is an issue I'll keep an eye on it and see if it wears.

