Contact your congressman's local office (type in your zip code to search for the phone number in google). Ask to speak to his/her USCIS liaison. Explain your situation to that person, and have that person explain it to USCIS. Thing will go much more faster. USCIS liaison for your congressman's office will be able to find out why exactly they are requesting this (why they did not accept the last one) and what needs to be done now?

Note: be sure to contact the congressman's office, not the Senator's office.