Yes, you can still apply for Reasonable Adjustments for your Learner if they have not yet received an official diagnosis. We review every application on a case by case basis.  

If you are applying for Examiner Awareness and/or Questions and Instructions to be broken down and repeated then we do not need to see supporting documentation. Currently ExamTrack still requires you to upload a document in order to submit an application so in this case you may upload a supporting statement from yourself. Remember the key information should be provided in the text boxes in the application form.