10to8 will already know many details about your business from the signup process. If you want to make changes go to "Set Up" > "Business Details".

Here you can edit your Business Name (and short name for SMS), the Email, Phone number and add the link to your Website.

You can also add a Business Description, Cancellation Policy, Privacy Policy, Country, Language and Timezone.

This information will appear on your online booking page. If you don't want to show specific information, leave it empty.