My family (5 members) recently received immigrant visa. Now, when I try to pay fees on USCIS immigrant fees portal, the A-Number and Case ID works fine for the 4 members but when I do it for my youngest brother, the portal gives an error: An unexpected error occurred . I am attaching screenshot for reference.
Solutions tried:
1: Created an account on USCIS and sent inquiry but no response.
2: Called NVC: they told me to contact USCIS directly, this is not their domain
3: Called USCIS (+1 (800) 375-5283) but there is an AI bot that answers and solves nothing.
4: Emailed embassy but of no use
5: Tried searching internet but could not find any reasonable solution.
6: I tried different browsers (firefox, IE, Chrome) and different devices (iOS, Windows) but nothing works.
Please help me resolve this.
TIA
