I sent my file i-130 with US Postal Service but i use the address for Express mails Address " I-30 131 south Dearborn-3rd F1 Chicago IL 60603-551" Can USCIS accept my File? if not what should i have to do?I trace my file using USPS tracking method and it says Delivered How can i know weather the accept my file or not? Are they will send email if the Accept it ? I can't contact them through e-mail.
Waiting your usual prompt reply
Thanks in Advance