Find the most convenient method for you. Loan Payoff Request correspondence on SSFCU letterhead. Instructions.Fill out online and submit. Credit Card: (866) 820-3034. Debit Card: (866) 820-0995. We'll create a budget-friendly payment plan so you can quickly and easily pay off your loan with Texan Credit Corporation. BSI Financial does not accept cash, credit cards, debit cards, pre-paid credit cards or electronic MoneyGram as a form of payment. Toll Free: 800-678-7228. Loan Payoff Address Standard Mailing​ PO Box 7000. This form is for existing Westlake Black Visa Credit Card account holders only.