You can set for Vantage to email the listing owner to remind them to renew their listing (which they can do via a link in the email), and you could edit the text of that email through some minor changes to the default theme files as there is no actual setting within the theme admin dashboard to alter this. The listing will automatically be removed from the site once the listing has expired, so you wouldn't need to manually do this. Alternatively if the customer pays to re-list the listing, it will do so also without manual intervention unless you specifically set this to require approval before it is published. Thanks.