Got Denied Disability Tax Credit (Canada) as a person with a stutter

Got Denied Disability Tax Credit (Canada) as a person with a stutter Does anyone in Canada have any experience applying for the disability tax credit (DTC) in Canada for a stuttering disability? I applied a few months ago and had my speech pathologist fill the T2201 form and sign it. I recently got mailed that it was denied, and was wondering why? My speech pathologist also does not know the reason. Wanted to know if anyone else has had a similar experience and can share some advice. I understand that stuttering is difficult to prove on paper, but it is listed as a disability on the CRA website. They asked for more information, but not sure what else they are looking for?