The applicable steps below may vary depending upon the theme and available features of your WordPress site. Generally, the footer text is available in one of these areas: 
  1. Log into the site dashboard.
  2. Select Appearance > Widgets.
  3. Click the down arrow to expand the widget section where you would like to add or edit text.
  4. A new field can be added to the section by dragging and dropping a widget from 'Available Widgets'.
  5. To edit an existing field > click the down arrow next to that field.
  6. Save.
OR 
  1. Log into the site dashboard.
  2. Select Client Settings. 
  3. Find the desired section, such as Footer or Contact Details (Note: The available sections can vary based your site's theme and/or available features.) Click the down arrow to expand the widget section where you would like to add or edit text.
  4. Make the desired edits.
  5. Click Save.