You can go to www.uscis.gov and make an INFOPASS appointment. You can do so and advise them at your appointment that a mistake has been made and try to correct it that way. Otherwise you can call the 1-800 tollfree number. 1 (800) 375-5283.
No attorney-client relationship is created or implied by this communication in any way. Consult a competent immigration attorney preferably one who is a member of the American Immigration Lawyers Association (AILA).
I agree with my colleague.
(213) 394-4554 x0 Mr. Shusterman is a former INS Trial Attorney (1976-82) with over 35 years of immigration experience. His response to your question is general in nature, as not all the facts are known to him. You should retain an attorney experienced in immigration law to review all the facts in your case in order to receive advice specific to your case. Mr. Shusterman's statement above does not create an attorney/client relationship.