You can add your phone number directly from the listing edit page.
Please click 1) Owner Tools > 2) Edit > 3) Add number in the 'Display Phone Number on Listing' section
Once a valid phone number is entered and a draft is saved, it will appear with a validated checkmark. Clicking the 'Remove' button will reset the number field to the default state.
The number appears on the contact box of the listing page.
In order to change your email address, please contact our Support Team at firstname.lastname@example.org.