Thread: Scope parallax - adjustment

I recently obtained a 2.5x Burris scope on a rifle.

Really nice little scope but I think someone has fiddled with the parallax - moving my head even a little bit results in 100mm+ apparent movement at 100m. Looking closely at the notches at the front the paint has also been knocked off... Bugga. Anyone know who in NZ can adjust this or have experience they can pass on as to how to do it?

Thanks.