Sorry, forgive my ignorance in this field! I take it poor camber causes the tyres to wear on the inside. I do believe it was the tyre issue that I requested be fixed when I left the car in. I was told that it is difficult to rectify, and to be honest I don't recall if any improvements were made at all. I just buy cheaper tyres now!
The problem is the limits for camber specified for the Omega allow too great a negative camber angle (top of tyre pointing "inwards" towards the centre of the car relative to the bottom of the tyre).
This means you can take it to a tyre outfit, they put it on the machine and it shows the adjustment in the "green" when it's actually excessive, and will wear tyres.
What you need to do is to take it to someone who knows what they are doing such as Wheels In Motion. I appreciate that's not going to be easy given your location (a lovely part of the world, BTW) so the next best thing is to take it to a garage with a decent full geometry system, and specify that you want -1
o10' to -1
o15' of camber. That should be about the right ballpark.
Kevin