Need help with camber adjustment

Hi there can anyone help me where or how can I sort the rear camber out on my vectra Gsi it's lowered on coilovers and it's wearin the inside edges of my Tyres it's not touching the rest of the tyre please help as it's costing me a small fortune in Tyres thanks

i can answer that in one sentence.

get superflex poly bushes in the radius arms then get the car lazer tracked. job done

as above ^^^^^^^^^^^^^^^^^^^^^^^^

So it be adjusted cause I've had look and can see any of doing it it's running on only about an inch on the inside of each rear tyre

the problem is the same as i hadon my sri v6, slammed on 18's, put the poly bushes in and got it tracked and never ate a tyre again.