On a stock car, front toe is adjustable, whilst caster and camber are fixed. If there is an imbalance across the front axle you can move the front subframe slightly to optimise (balance across the axle) the front camber and caster.
On the rear you can adjust the toe and camber.
In my experience most FWD cars with a mac-strut front end tend to scrub the inside edge of the front tyres when cornering. It normally shows most on the offside front tyre due to enthusiastic driving around roundabouts.
Ignoring the inner edge of your tyres for the moment, what are the other tread blocks like? If you run your hand around the tyre, does it feel smooth one way, and rough the other - almost as if the treadblocks have a kinda sawtooth profile when viewed from the side?
It's quite possible you've run with excess toe-out, and then with the inside edge scrub superimposed on this the tyres are shot on the inside edge earlier than would normally be the case.
Would VW do a better job of alignment?
To my knowledge, the best equipment in Dorset (Poole / Bournemouth) area is at Pro-Tyre in Creekmoor. It's about £25 per geo change, so theoretically a max of £75 on a stock golf.
I've not used Protyre in years, as I always do my own alignment, but if I had to, that's who I'd use.
Just my 2p worth..... others may disagree.
edit - seems Alex replied to the camber question, whilst I was typing my reply......
