Help with denial of ndis access

I just found out that my ndis application was denied. They state twice in the letter that they don’t believe I have explored all the available and appropriate treatment options that are likely to remedy my impairments. But what are these treatment options? For context; I suffer from c-ptsd, GAD, panic disorder, agoraphobia and social anxiety disorder. I am 21, and have been diagnosed and dealing with these issues since I was 14. Please help me understand what treatment options I should have explored. I have had psychologists since I was 14 and a psychiatrist for a year. I’m on medication and have been for about 2 years now after exploring many other medications for 2 years before settling on my current one. Edit: I submitted multiple reports from many different medical professionals who clearly state how bad my condition is, including the fact that I often need help to leave my room, do basic self care, etc. they also state how they believe I won’t be getting better anytime soon. My point is that I thought all the evidence I submitted was thorough.