I called to inquire on the advice of a lawyer and they said it had been 30 days since my RFE response, the lawyer said I should try to "push" the case. I told the reception person my PD was 5/17 and the processing date on the website was 6/20 and I merely wanted to inquire as to the status of my case. They transferred me to Level 2 Representative, who said I needed to wait 30 more days for a response. I was very kind an polite to them, and a few hours later status changed to CPO! Since then has changed to decision and back to CPO.