Supplier Registration Request for Information Not Working

For a “New Registration” to “Request to Resubmit”. When uses this option it goes to the potential supplier, they see the note, and respond. As well under “Actions” there is an option for a “New Registration” to “Request for Information” and it seems we can put in a note, request the information but it never goes anywhere so the question is “WHY”? I believe this should work as it states, if requesting for supplier to put in your Tax ID, banking, etc the potential supplier should be able to do that and then get the link, so it comes back.