So I'm not really sure this is the appropriate place to post this, or what kind of help you all may offer, but I like this forum, so I'll post it here. So I'm a student in college, and I have a student loan through the lending firm Nelnet, and I make regular monthly payments on my loan, that I always have go through on the 1st of each month. Well I had just made a payment of $100 on 3/1/16, and my payment history on Nelnet reflects this payment. However, my bank shows a charge of $100 on 3/1/16, and another charge of $100 on 3/2/16. This second charge I did not authorize, so Nelnet took money out of my bank account and has no record of doing so on their website when I log in. Is there anything I can do to them, because they took money out of my account without my authorization, which, is illegal. I will obviously ask for a refund, but is there something more that I can do to Nelnet? Thank you in advance.