Maxview pro issue

My new ( to me) Fairford had only 300miles on clock when cruising up M5 I was alerted to some issue as motorists started flashing me and pointing to the roof.
Sure enough , on stopping at next services, the Maxview pro aerial had gone ! Didn’t hit anything… just sailed off apparently. I gather I am not the first.
My supplying dealer now says he can only fit the new Maxview pro which requires a new base with four screws securing aerial to base ( I wonder why!!?)
Unfortunately this new design requires a new base….
So unless I am very mistaken, the whole ceiling , shower enclosure as well as numerous other trim items will have to come out….to fit it….which fills me with horror.
Anyone else had this issue… and resolved it satisfactorily?
Thanks

Surely a warranty repair. Not your problem - apart from your horror that your nice new van needs to be messed around to do the job, and you'll be without it for a while. I'd make sure it goes back to Willersey for a proper job. I wouldn't trust a Marquis dealer to do it.

Sound advice Ron….
I agree absolutely…. Based on dealer after sales service so far…..