need source/ help to update I-94 online

Urgent :
1.I have stamped visa until July 2025.
2.In 2023 I had an approved i797 (h4)which has I-94 until Dec-10-2026
3.In Dec 2024 went to cruise so Admit/issued date has updated to: Dec- 20 -2024 but I-94 is still July 2025.

Now attorney is saying to change i94 online by reaching Cbp office to file my EAD. I sent several emails and currently walk in is not allowed.
My EAD is expiring by Aug 2025.
I need source/ help to update this I-94 in online to I797’s i94 date(Dec 2026).

What was your port of entry when you came back from cruise?

If I understand your issue correctly, when you entered your new I-94 admit until date is now matching your visa expiry date and not with the expiry date of I-94 attached to your I-797 H4 extension approval notice which is Dec 2026, is this correct?