<prompt> Human: I recently had a federal perkins loan moved between servicers. I called the new servicer to discuss payment details e.g. login details for their online payment system and provide my new address information, then several days later got the letter.The letter confirmed that my account was paid in full yet I know I still had a balance with the previous servicer. Any advice?Edit: the letter was from the new servicer.  <response>: If your loan has changed servicers. Then its possible your old servicer sent out the letter. The old servicer would have had to close out the account for their own accounting and tax purposes. The letter was probably autogenerated. If you have concerns call whoever sent the letter and ask why it was sent. Remember never give your full social security number over the phone.I had a private loan that was transfered to another servicer when the old servicer got bought out. The old servicer sent out a letter of closure, and the loan also appeared on my credit report as closed, and a new loan appeared on my credit report by the new servicer in the amount remaining from the old servicer. This is typically what happens when loans change servicers or are refinanced.In any case call the servicer listed on the letter you received and ask for clarification. DO NOT GIVE OUT YOUR SOCIAL SECURITY NUMBER. Last four digits are okay as they are frequently used as identifiers. 