Two deleted for not answering the question. Further notes:
a) Posting a list of several unvetted internet fax services from an internet search isn't helpful; OP has made clear that they have tried those services and they have not worked.
b) Answers should definitely assume that physically taking records to the office is a nonstarter.
a) Posting a list of several unvetted internet fax services from an internet search isn't helpful; OP has made clear that they have tried those services and they have not worked.
b) Answers should definitely assume that physically taking records to the office is a nonstarter.