1 week post op of Juvederm injected into lips, I see no difference. Is this normal? (photo)

I got a full syringe of Juvéderm injected into my lips a week ago. My lips now look no different than they looked before the syringe. I went back in and the nursr said that she sees a difference… But I do not. I left without getting any more injected. I have included pics that I took. The top is before and the bottom is after 1 full syringe of Juvederm after about a week. I would like at least the results I paid for. Should I ask her to inject more? If so- is it understood that I pay for more? Or was this possibly an injection error that should be comped?