EAD卡被退回到重寄

四月中旬申请OPT， 七月初EAD寄出，由于搬家，mailbox忘记贴名字，卡被USPS退回。期间多次联系USCIS，被告知只能等，二级客服甚至说可能要等90天。最终联系议员拿到卡，从退回到重寄相隔差不多20天。
timeline
04/17/2018 We received your Form I-765, Application for Employment Authorization
07/03/2018 We mailed your new card your Form I-765, Application for Employment Authorization,
directly to the address you gave us.
07/09/2018 The Post Office reported it is returning your new card to us
07/11/2018 your request to have your Employment Authorization Document resent to you, was assigned to an officer for response.
07/13/2018 The Post Office returned your card to us as undeliverable.
07/16/2018 your request to have your Employment Authorization Document resent to you, was completed.
07/23/2018 联系当地参议员，并发送相关文件
07/26/2018 参议员forward USCIS的回信，说已经加急
07/27/2018 Card Was Mailed To Me
07/30/2018 USPS delivered

总结一下经验，感觉卡被退回的话唯一有用的就是联系议员，USCIS的客服的作用基本就是查询一下信息，二级客服可以发邮件催一下，但基本没有作用。我的情况是议员给回复之后第二天USCIS就重寄了EAD。由于预约的info pass还没去就已经收到了卡，所以不知道info pass有没有作用，但根据其他人的帖子作用应该不大。
总之，由于starting date已过，等卡的过程还是很煎熬的，期间看了很多版上的帖子还是得到了很多帮助，希望大家都能顺利拿到卡。