符不符合245i的條件需要證明.你還沒有證明. So

likely USCIS asked you for proof of residence in 2000.

To be eligible for 245(i), u must:
1) have an immigration petition filed for u on or before April 30, 2001.
2) was physically in the US in 2000.
3) have paid $1,000 penalty when filing 485.

From ur posting, it seemed that you only met the first condition.

Since your passport was lost and you did not have any other documents proving that you were physically in the US, USCIS therefore asked for I-20的學生簽證和所有成績單（還要密封). They also gave u an opportunity to remedy the improper filing of ur 485. Ur 485 could be rejected or returned for lacking of $1,000 in fee).

A sponsor would not be required to attend an interview. However, if u are under 18, the sponsor would likely be required.

245(i) is a very complicated matter, a legal professional could handle this better than u or anyone who did not have much first hand experience with the DAOs concerning the requirements of 245(i).

The above shred is based on assumption that ur father filed an immigration petition for you on or before April 30, 2001.

Disclaimer: FYI only, not a legal advice.