To make inquiries to USCIS about the status of your case you may call 1-800-375-5283. You will need the following:
1. Receipt number
2. Alien Registration number
3. Type of Application Filed
You may email your Service Center if 30 days have passed and you have not been contacted with an answer about your status.
If there was no response from your Service Center within 21 days, you should email USCIS Headquarters Office Of Service Center Operations. Email address is email@example.com .There should be a response within ten days.
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