Once you submit your application, you are unable to make any changes, nor can we make changes for you. Additionally, you are unable to submit multiple applications for the same job posting. We encourage you to take your time and utilize the review page prior to submitting any applications.
However, uploading additional documents would not constitute changing your application. If you need to upload your CV/resume, cover letter, or portfolio, you can do so by going to your Profile on your Dashboard.
Log into your Dashboard. Once in your Dashboard, go to Profile. From that page, toggle over to where it says My Files and that will grant you the ability to edit and upload your documents.