"Refuse to help me with knee pain"

I called the practice a number of times over the last two years about knee pain, and it has got to the point where I am struggling to walk because of the pain. I have also been in physiotherapy for most of that time and because of that they refusing to treat me, my condition is getting worse and they will just refer to or ask me questions about what my physio is saying. My physio things I may have a cartilage issue, inflammation issues. But the doctors won’t even refer to the pain clinic when every step I take hurts. I can’t live my life on painkillers and depressed because I’m always in pain. All I want is help.