贡献2月OPT timeline

2-4 材料寄出，chicago office
2-8 Chicago office 签收

2-17 $410 check 被USCIS提走
2-21 收到USCIS的材料接收短信

等待

4-7 New Card Is Being Produced

收据号码：YSC219006****
祝大家好运~

补充内容 (2021-04-09 00:35 +8:00):
4-8 Case Was Approved