1) For the bottom part, go to "Extension" -> Choose "Modules"

2) At the Modules, click 'Search Tools' -> Select Position (Bottom4)

Click on the title to edit the modules

3) On SP Page Builder, go to text-block addon. Edit the text by click the pencil icon

4) Next, edit the contact info at the content

5) After edit the content, click Apply button on the bottom

6) Then, save the Modules by click the 'Save' button on the top of the Modules