The easiest way to make a payment is through the TCU Online Banking or Mobile Banking App if transferring from a TCU Checking or Savings account. In the case of an overpayment or erroneous payment, a refund application is required.Click the button below to use our online request form. The Loan Consultant feature determines the products and rates that match your needs. Please take a moment to answer the following questions. Travis has overextended himself with his mortgage payments, credit card debt and car payments that his current salary can no longer support. PHONE: Customer Service. 707-449-4000.