It is possible that your letter did not get where you intended. You are required to attend ALL scheduled interviews before USCIS. I have actually seen this many times. Be advised to either seek counsel to help you, or schedule an INFOPASS appointment immediately to make sure that you have not been denied for abandonment. This situation is unfortunately quite common, and you need to be proactive at this point ; seek an INFOPASS and counsel. If you do not know how to schedule one seek counsel to assist you. If you have been denied already, then counsel can assist you with this situation. Good luck
No attorney-client relationship is created or implied by this communication. To contact this attorney see his profile; attorney number: 281-733-2875.