If you have some problems with saving the changes you have made, here are 2 places you can check:
Make sure it's filled in with something you'll be proud to introduce yourself as
Your organisation name
Again, you can key in anything you want here, just make sure your bosses/compliance department is cool with it
As soon as you have something keyed in there, you'll be able to save new changes to your profile.
All the best in creating a rocking profile!