Pure Barre Portsmouth

So I just received a call from a collection agency that told me that I owed money to Pure Barre in Portsmouth. I had gone for a free trial. Hurt my back trying this fast paced fitness. I had signed some paperwork on a computer screen and thought I might take another class . Finances were unavailable for this so I contacted Felicia who was the manager explaining my situation. This was what I had said and then her response . I find that I am being scammed Just want it cancelled. Have never used facility other than the Free trial.