Why haven’t my lips returned to normal state after dissolving three times? (photo)

I have had 0.5ml Juvederm for the first time back in August 2021, only in the upper lip. I didn’t like them and had them dissolved which took three sessions in September 2021. Even after this, my upper lip isn’t back to it’s normal shape or size. The person who performed the procedure claims there is no filler left, but I look nothing like I did pre-procedure. Will they ever go back to normal? I don’t understand why this is happening.