psa: nonprofit 501c3 application denied

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Illustrative scenario prepared by my practice.
For informational purposes only. This is not legal advice. Laws vary by jurisdiction. Consult a qualified attorney for advice specific to your situation.
Hypothetical question

I'm dealing with a situation and need some guidance.

nonprofit 501c3 application denied. I've been dealing with this for about 2 months now and the situation isn't improving.

I have already done some research online but the other party is not cooperating.

Do I have a strong case? What should my next steps be?