When you're setting up your Seller Central account following the ALGO instructions, you may know we suggest to get set up in your own personal name first, and then switch to a business entity later on.
You may need to check a box in seller central that states "I confirm my business location and type are correct, and I understand that this information cannot be changed later".
That is totally okay, and is just referring to the Application process. Once you're approved, you are able to change your information in Seller Central.