Steps:

1- Log in to your fitli account

2 - Go to "Personal" section, then "Account", then "Account Type". You'll see something like this:

You'll see that your current account type is "Personal". To upgrade your account to Professional or Business type, click on the "SELECT" button accordingly.

Notes: If you want to upgrade to a Business account, you'll need some information about your business for the signup process. This includes Tax ID number, business credit card number, bank account information, etc.  Having that handy prior to upgrading your account will save you time!