Click the file request link provided.
You will see a screen like this:
You can either click “Select files” to choose files from the document’s saved location on your device, or you can drag and drop your files into the drag and drop area to upload them.
Click “Add another file” to add another document, or drag it into the upload area.
You can select multiple documents at once, but you should not upload a folder into the upload area; instead, selecting the files individually from the folder for upload.
When you have finished adding each document to the upload area, you should click Submit. The document(s) will begin uploading.
While uploading, you will see a blue progress bar across the bottom of the screen.
When the upload is complete, you will see this message: