A "brow lift" using Botox or Dysport requires understanding of how which muscles are responsible for lifting the brows. Because these products work by relaxing, it then is necessary to relax key muscles that are pulling the brows down and inward. Taken into consideration gender, muscle action, and whether or not someone is a better candidate for surgical intervention.
In our practice, achieving a brow lift with Botox requires dosing the muscles responsible for frowning (glabella area) as well as the eye muscle at the point where the tails ends of the eybrows are. If we are using a conversion of 1 unit of Botox is equivalent to 3 units of Dypsort - a standard dose for the glabella area is 60 units to lift the inner brows and soften the muscle causing a frown. To achieve a lateral brow lift (the tails of the eyebrows), we use a standard dosing of 5 units of Botox to each side which would be 15 units of Dysport each side. Of course, there are factors that may change this dosing, but this is a typical treatment that works quite well for most.
There is a possibility by the dose that you are describing that your practitioner injected your forehead muscle in an attempt to lift the arches of the eyebrows when you animate or use your forehead. In any event, this is not recommended when trying to achieve a brow lfit.
See the below link for photos of a brow lift with Botox/Dysport as well as more articles.