How can we help you? Please select a support option below. For assistance with Online Banking, visit Online Banking Support. Balance Inquiry × Balance Inquiry Please log in to Online Banking or call us at (800) 749-7113. Transaction History × Transaction History Please log in to Online Banking, download the Great Southern Mobile Banking app or call us at (800) 749-7113. Account Fees or Changes × Account Fees or Changes If you have questions about a fee, or need to make changes to your account, please call us at (800) 749-7113. Lost or Stolen Debit Card × Lost or Stolen Debit Card Please call (855) 853-9400 immediately. Rates × Rates Please call us at (800) 749-7113 to discuss with a Customer Service Representative. Products and Services × Products and Services Please call us at (800) 749-7113 with account-specific questions. For general product information, visit our Checking, Savings, Health Savings or CDs & IRAs page for additional information. For general services information, visit our Debit Card, Online Banking, Mobile or Additional Services page for more information. Loans × Loans Please contact our Loan Servicing Department at (888) 245-2530. Wires × Wires For routing number or SWIFT code information visit our Routing Number page. If you need something else, please call (800) 749-7113 ext. 4114.