Importing functionality is available to US clients. Please see the following links, containing guidance for uploading a file and file formatting guides.
From the top menu click Payments and select Make a payment, this navigates to a page titled ‘Payments Choose a payment service’
Click the Upload a file button, this navigates to a page titled ‘Upload your file’
Select a file format from the drop down menu
Either drag and drop your upload file as displayed on screen or click the Browse button and select a file. Once a file has been selected the upload status will be displayed on screen. After the file has been uploaded click the Continue button, this navigates to a page titled ‘Review and submit your payment file’
Review the payment details on screen and select the appropriate navigation button following your review.