I think perhaps the issue here is that the quote Warwick gave probably was in line with the work involved, a full refinish, new LEDs etc etc, however none of that was necessary or wanted in the eyes of the customer, you just wanted the neck issue resolved, but they were all or nothing.
So whilst I agree that Warwick shouldn't necessarily be vilified, I think if they want to seriously attract current users to them for servicing (which in turn would likely create further sales), they should be much more flexible with the elements of that servicing they deem to be necessary.
And yes, the sales offer certainly throws up questions as to how they can write off $3000 from the cost of the service, or perhaps the other way of thinking of it is $3000 from the cost of the bass.
In any case, the work is done, Martin has done a great job by the looks of it. Long live british luthiers
Si