As the title said, Our AOS interview was cancelled on Nov 2017 by no reason.
Last month I went to local office for infopass and was told USCIS regular check which need more time.
Today I received email from USCIS:
Due to workload factors not related to your case, USCIS anticipates a delay in completing your case. USCIS is committed to adjudicating immigration benefits in the order received and in a timely and efficient manner. We regret any inconvenience that results from delays in processing.
Address Changes: If you move, please provide us with an updated address. For more information about address changes, please visit our Web site at www.uscis.gov/ar-11, and click on "Change Your Address Online."
I totally confused and do not know what to do unless forever waiting.
Any advice will be welcomed