Go to grasp.org and register there, after they approve your registration request they can assist you in getting a diagnosis. I actually just got approved today and they immediately sent a message asking if I needed assistance in getting a diagnosis in my area. I actually at this point am already scheduled for an evaluation so I told them I didn't need them to help me find one, but if you are having that much trouble then it would probably be a good idea to try with them.
It took a little while to get approved, I sent them a message after two weeks asking about it and they approved me the next day (today). So maybe after like a week send a message, I am not sure but it seems like that is the reason I finally ended up getting approved, since it happened almost immediately after. Hope this helps.
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"It has long been an axiom of mine that the little things are infinitely the most important."
- Sherlock Holmes