You will probably want to change the default phone number provided in the top right corner of your homepage. Also, you might want to change the default "Bid and win!" slogan.
To change either of those, make your pointer click on the paint bucket icon in the Admin Panel and click Theme settings.
Click Top menu + to expand this section.
To change the slogan, enter a new slogan text in the Header Slogan field.
To change the phone number, enter a new phone number in the Contact Info field.
You have the option of not displaying social links (Facebook/Twitter) in the header section of your site by unchecking the Social Links checkbox.
When you have made all the necessary changes, click Save changes.