I bought a series of 10 laser treatments ( buy 10 get 1 free) to be performed on my abs. for 1K. During the second treatment, I felt an intense burning sensation, and have told them that it is burning me. They continued to finish the treatment. I had several burn spots on both sides of my waist. First, I was waiting for them to go away, but it has not gone away for 4 weeks now. I called them to inform about the incidence. They asked me to come in for an examination. I did not see the doctor, only the nurse. They wanted me to switch to another laser machine, and said that since I am so nice about this, they would give me a discount for the new laser machine, and I have to pay an additional $1K to switch. They will not refund the money. What should I do?