It looks like Stuart and Bill have covered the GEDCOM issue so I'll address the trusted list issue.
You say you have asked for trusted list status for another member. I'm not sure if that is what you actually meant or not so I'll just start by saying we don't ask for trusted list status on another member's profile unless they are family and they want to allow us access.
If you meant you requested access to an ancestor profile managed by another member, then this link will help you understand the steps to take if you get no response.
It is never acceptable to intentionally create a duplicate profile. As outlined in the link above, there are procedures to follow, creating duplicate profiles isn't one of them. It may take some time, but eventually, you will be granted access if there is a good reason for it. You do not need trusted list access to edit open profiles.