Processing of the deferred action applications has slowed down in the last few months. I would not be concerned unless your application is denied.
What information did the RFE request?
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You should not be worried about the delay - many cases are being filed so a wait is expected. Whether you should be worried about a denial is impossible to say without more knowledge about you and your background/history.
Samuel Ouya Maina, Esq.
Law Offices of S. Ouya Maina, PC
332 Pine Street, Suite 707
San Francisco, CA 94104