How long does Teosyal filler last? (Photo)

I had 3 syringes of Teosyal filler. I have a huge problem with 2 bulges under my bottom lip (due to total loss of volume right in the crease of my chin), and deep smile lines. I had 3 syringes injected into the crease above chin, and 1 full one for cheeks then I came back a few weeks later for the Smile lines as the cheek lift didn't help.The Teosyal has already disappeared only 3 months later and I need to go for an entire fill again. The bulges under my chin look terrible. Is this normal?

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