For Climb loans funded BEFORE 10/16/23, your loan servicer is University Accounting Service (UAS). You can contact them by calling 844-870-8701 or emailing UASconnect@tsico.com.
For Climb loans funded ON or AFTER 10/16/23, your loan servicer is Launch. You can contact them by calling 833-353-0594 or emailing climbcredit@youronlineaccount.com.
You can find information on federal student loan servicers at https://studentaid.gov/manage-loans/repayment/servicers.