545 days still waiting for I-485

I have been waiting for 545 days for my pending I-485.

I-130, I-131 and EAD approved over a year ago.

I have sent a message to my congresswoman for assistance, she replied the next day stating that she has sent a message to USCIS, and will get back to me as soon as USCIS replies

What do you think i should be expecting from a congresswoman??