Filler under the eye resulted in lump and doesn't go away

2 years ago I had fillers under the eyes for a rejuvenating effect. The doctor injected Princess filler from Croma pharmaceuticals (Austria). Supposedly, it is hyaluronic acid. After two years, the lump/bump is still there. I was told it lasts up to a year. The result was not good at all but I was hoping that, by now, it would be gone. It looks as if I have a lump under the eye. I am now starting to worry that he might have mixed it with something permanent (although he says he didn't). Thanks