Log into Digital Banking. To place a stop payment on a check I wrote: Select the MORE widget and then select the ADDITIONAL SERVICES widget. Select the Stop Payment option from the menu. Select the "New Stop Pay Request" button. Complete the information requested and press the Submit Request button. To place a stop payment on an electronic (ACH) withdrawal: Please call Member Service at 206 628 4010 or toll free at 1 888 628 4010. We are available to help you Monday through Friday from 7:30am until 5:30pm.