If, for any reason, your payment doesn't work and you need to do it again then just use your same order number. You only need to upload your scripts/docs once on that order number and you only need to place one order.
Enter your name, email and order number and click "Upload file(s)". The next screen will allow you to drag and drop or select the images to upload. Click the "Upload" button at the bottom of that screen to transfer the files to us. Please use standard image files like jpg, gif, tiff, pdf etc. Use file names for your images with standard numbers and letters only.