Amazon has teamed up with Wells Fargo Educational Financial Services to offer Amazon Prime Students a 0.5 percent discount on private student loan interest rates, Wells Fargo announced last week. Wells Fargo is the largest private student lender in the United States among commercial banks. The Amazon discount can be added to the 0.25 percent discount rate Wells Fargo already offers for enrolling in an automatic monthly loan repayment plan, as well as any of the bank's interest rate discounts tied to a global promotion.