sjakub said:
If anybody is still interested in this,
I ordered FOIA records (
https://foiaonline.regulations.gov/foia/action/public/home ).
First, I created an account.
After that I created a request with following details:
Agency: U.S. Customs and Border Protection
Reason: I wrote that I need my travel records for immigration purposes in Canada, that
at least one entry is missing in I-94 online report, and my passport details (country, number).
I also attached a photo of the passport bio page and a photo of the page with the US visa.
In the "max amount" field I entered $100, but they didn't charge me anything.
I was expecting this to take weeks (or maybe even months), but I received an email
with a PDF file with the requested report the very next day (!!!).
And the most important part is that the entry that is missing in I-94 records is there!!