How to Download Attachments from Invoice Adjustments via Deel API?

Hi
I’m using the Deel Invoice Adjustment API to manage “work” type adjustments, which include attachments (e.g., screenshots). The adjustment JSON provides a filename and key, but I cannot find an endpoint or parameter to retrieve a download URL or directly fetch the file.

Attempts with /rest/v2/time-tracking/timesheets/{id}?extend=file_data failed with “contract not found.” The official documentation (e.g., https://developer.deel.com/reference/deleteinvoiceadjustment) does not mention attachment downloads.

Is there a specific API endpoint, query parameter (like extend=file_data), or alternative method to access these attachments?

Any guidance or examples would be helpful.