The situation is about USA , family-based immigration Visa for brother and sister.
In 2004 a person applies for his brother.
In April 2019, NVC sent a notice "Notice of Immigrant Visa Case Creation" abroad by mail to the Principal Applicant (This is the person who is going to immigrate to the United States.). In this notice NVC says: "You need to log on to the Department of State's Consular Electronic Application Center (CEAC) at https://ceac.state.gov/IV to check your case status, pay any necessary fees, upload and submit documents, and read messages from NVC."
In this notice NVC also says: "IMPORTANT: If you do not log into CEAC or communicate with NVC regarding this immigrant visa case for a period of one year, by law the Department of State must terminate your visa application."
The Principal Applicant never logged on to the Department of State's Consular Electronic Application Center (CEAC) at https://ceac.state.gov/IV.
In November 2024, NVC sent 2 notices (both notices are exactly the same):
one notice abroad by mail to the Principal Applicant,
the other notice by mail to Petitioner (in USA)
Both notices say:
"This letter is notification that a visa number is available".
"If you do not reply to this notice withing one year of the date of this letter, your immigrant visa application will begin the termination process".
Now it is October 2025.
You have read all the situation. Please note that the Principal Applicant and Petitioner:
(1) both want the Principal Applicant to immigrate to the United States,
(2) both want to keep the case open,
(3) also they do not want to lose the benefits of this petition, such as priority date.
Please suggest what the Principal Applicant or Petitioner should do now.