Well they weren't the only ones...although as you say they were polite...although it was a waste of my time.
I had a worse experience down the road in Boronia at Topshelf storage solutions.
There I had a great initial discussion...then waited for the quote...and waited for the quote...then rang a few times...and again turned up at their premises twice...to be finally told after a couple of months of waiting for my quote...that they didn't want to waste their time because they didn't think I could afford them.
A bit hard to tell that when you don't know the price - I mean I wanted to spend up to $6,500 - but when it takes 2 months to not get a quote - how long would it be before I got my van back?
I later heard from those who referred me there that they were probably also focussing on fleet customers now - all they had to do was tell me that up front - and I wouldn't have wasted either of our time - their website still doesn't mention fleet only - although it does say "...you won’t find a team more committed to customer satisfaction..." RME.
I did try a caravan mob in Bayswater North too but at least they were up front about not wanting to do the job.

As detailed in another Aust. Volkswagen Campervan/Motorhome List thread on this forum, I ended up driving to Drifta in Gloucester northern NSW, had an excellent job done by really nice people over 2 days, and probably saved a couple of grand - less fuel cost