Scam caller "National Student Aid Center" offering to "provide assistance with my existing student loans". I have never had a student loan. Most likely an info-harvester scam trying to get credit/bank/personal details.
Non professional. Got my answering machine and said Hello 3 times (like duh) and then sang a little song to me and hung up. When you call back you get the musical tones playing back and then hung up. Some kind of course scam.
Got a call from this number. It was a recording saying "your student loan has been flagged for a loan reduction program". I have no student loan. Some scam most likely.