You could try a paintshop, they may be able to fill and respray it, but the cost may exceed the original price. You could do it yourself, but the finish would never be up to scratch.
If it doen't affect the performance, then just eye the ball and try to ignore it - and try not to hit down when using a high tee.
Hope you get it sorted, a mate of mine but a mark on my Orlimar driver and I notice it every time.