If you upload your image into ServiceBox and notice a border or frame when you print that looks like this:
This is 'ghost' border that happens when the image has a white background as does the print itself. To fix this, you can use an image editor that has a 'magic wand' feature. One free software can be found here: Paint.NET - Free Software for Digital Photo Editing (getpaint.net)
You can then select the 'Magic Wand' tool and click on your background. This will automatically select the full background of your image. Then press the delete key. This will make your background transparent.
Once done, upload this file as your company image and the border should disappear.