Can tear trough injections “settle” or migrate to upper cheekbone?

I got 1 syringe of restalyn in tear trough area for fat loss under eye and severe dark circles. The surgeon I went to specializes in eyes, and charged $2,000. After the horrible bruises went away it looked good. Then, 2 weeks later the filler settled on top of my cheekbones making a worse hollow under my eyes. I went back 4 mo. later and he injected more filler. The 2nd time it did the same thing and looks bad! What should I do? I don’t want him to “fix it” again. Suggestions? What went wrong?