There may be a delay in updates on line. Premium processing gets you an answer in 15 days which is approved, denied or an RFE. It can take a few months to receive your final decision
It may take a little more than 15 days from the receipt of your response for the government to review and approve the case.
The online status is known to have inaccuracies and delays.
J Charles Ferrari Eng & Nishimura 213.622.2255 The statement above is general in nature and does not constitute legal advice, as not all the facts are known. You should retain an attorney to review all the facts specific to your case in order to receive advise specific to your case. The statement above does not create an attorney/client relationship. Answers on Avvo can only be general ones, as specific answers would require knowledge of all the facts. As such, they may or may not apply to the question.