That is in no way an acceptable way to terminate. Completely unprofessional with no regard to your feelings at all. That T is a manipulative b**ch on a power trip.
You must be devastated and hurting so very deeply right now, Myrto. I'm so sorry you have had to endure this.
Could you call the other T tomorrow if she doesn't respond? I'm sure if you explain what has just happened she would try her best to fit you in for an emergency session.