Standard based their denial on a confition that I do not have

I find it ironic that I received a denial letter from the standard and the condition they based the denial on is not the condition I have. There are 3 specialists in my state who treat patients for this rare neurological condition. The condition stated in the denial letter is a valid condition but the claim handler states it was a typo on his part. It makes me wonder if the so called house doctors even know what this is I’ve tried to participate in clinical research trials but get disqualified when they find. That I am left hand dominant. There are not enough left handed people who suffer from this to justify putting grant funds for research on such an elite category.