Date format

I have a form in excel. The date is in Uk format (DD/MM/YYYY) but when I upload it to add teh signatur field and the date signed field, the date showas as MM/DD/YYYY.

To be clear, this date is not a docusign field. It is teh date the form was filled in.

I checked the regional setting, which is sent as DD/MM/YYYY  and the date signed shows as it should (Account defalult)