My Juvederm Lip Augmentation Lump Won't Go Away! Its been 9 months?

I got juvederm on my lips back in February of this year. There was a bump on the underside of my top lip that stayed 3 months later. I was furious because whenever I smiled, there was a droop in the top lip which made my smile look weird. I went back and demanded something to be put in to dissolve it. He said this is normal to get, Needles to say he did inject with the hyaluronidase and it went away slightly after a few days but its still there!!! Its been 10 months now. what do i do?