The Statement of Accomplishment uses the full name that you provided when you registered.
If you need to change your name as it appears in the Full Name field, please click on your downward facing arrow next to your username in the upper right-hand corner of your screen then click Account. Here, you can update the "Full Name" field. When ready, hit the enter/return key on your keyboard and your changes will automatically be reflected on the page.
Once the course has ended and Statements of Accomplishment have been generated, no further changes can be made, as it is not possible for you to re-generate your Statement of Accomplishment.