我剛來的時候是F2身份，我之後申請學校，錄取之後，我申請F2轉F1，可是學校OISS把我的資料寄到了錯誤的地方，並且不可追回。所以我的入學時間從春季入學推遲到夏季的暑假學期入學，學校重新給我申請的暑假學期入學的I20，期間，係裏給了我秋季開始的GA offer。五月份我拿到F1簽證之後，去學校報道，並更新I20（這個好像都需要吧），但是OISS的人，告訴我不需要。下個星期就要簽GA合同了，所以前段時間我去辦SSN,被告知信息不符，回來去OISS查詢，才知道除了這麽大的事情，OISS忘了給我更新的我信息，現在我的狀態應該是屬於非法滯留。
-Then, your status is still valid and your presence is legal. The justification for my conclusion is that: before your change of status from F-2 to F-1 was approved in May, your status was F-2, thus you were not be qualified to take any course in Spring Semester. After your F-1 was approved in May, your status has been F-1 until now based on the old I-20. Because your school does not update your record in SEVIS system with your new I-20, your new I-20 is not effective yet though it has been issued to you. Your F-1 status currently is based on the old I-20. So, you just need to ask your school to update your information based on the new I-20 (it is better to ask the school to issue another I-20 with the effective date on the start date of Fall Semester and put this I-20 information into your record in SEVIS). Then, you can study and apply for the SSN to work in the Fall Semester, not need to file F-1 reinstatement. It only takes a few minutes for your school to update your record in SEVIS. The problem for your SSN is that you showed the new I-20 for the SSN application, which has not been put into SEVIS, and that is why 被告知信息不符. If you had used the old I-20 for SSN, you would have got the SSN.
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