For Real Estate Loan payoffs, please call SDCCU at (877) 732-2848 to request a total payoff amount. Do you need a loan payoff request form?SDCCU financial representatives are available to help. Complete the contact us form or reach us via phone, email or fax. San Diego, CA 92150-2080. How do I get a payoff for one of my Fifth Third loans? Submit a request to pay off your loan. For general information, please call: (800) 293-6494. For general information, please call: (800) 293-6494. A payoff statement or a mortgage payoff letter will typically show the balance you must pay in order to close your loan.