回複：Did you or anyone else call TSC and got some useful informati

Keep calling TSC. Chances are you will meet a good representative. I was once in the same situation in which she told me to call the national customer service. But when I tried again, a different person was much more helpful.

When I called, I always started with "I have an I-485 application pending for more than xx months, and the online status has never changed. I wonder what's going on..."