Trying to use Code39 Barcode Font in Merged document

Trying to use Code39 Barcode Font in Mail Merge document. Fomatting is being ignored, both using Bookmarks and Mail Merge Fields. I have tried the document builder to format the Bookmark/Merge field. It defaults to Times New Roman every time. Any ideas?

If you can send the font, your document and code to word@aspose.com we will have a look quickly.