I am attending XXXX University ( fka XXXX XXXX XXXX ) to obtain my XXXX. For the XX/XX/XXXX-XX/XX/XXXX school year, I obtained approximately {$20000.00} in financing from Sallie Mae with a 2.25 % variable interest rate reduced to 2.00 % with auto debit. For the XX/XX/XXXX-XX/XX/XXXX school year, I applied for a {$35000.00} loan from Sallie Mae with a 6 % variable interest rate. I was shocked by the 4 % increase given that my credit score is still XXXX and nothing else in my credit history has changed. Sallie Mae advisors confirmed that my credit score and history was not materially different but would not tell me why my rate increased. After multiple phone calls, I was told that I could not be told the reason for the 4 % increase because it is " proprietary information. '' I find that hard to believe as I used to be a commercial lender and we always had to be clear about the reason for rate increases.