How can I enroll in Courtesy Pay? It’s easy to opt in to Courtesy Pay for your Alliant checking or savings account(s): In Alliant online banking, click into the checking or savings account which you want to enroll in Courtesy Pay and select the Manage Account tab, then click on Courtesy Pay & Overdraft Protection and follow the prompts to enroll. Call our Member Care Center at 800-328-1935 (24/7).