Boosting your listing lats for 30 days and there is no limit to the number of times you can do this.
Click the account drop down in the top right of the site and go to the “listings" tab. Your dashboard area contains a full archive of your listings and billing.
Find the listing you want to promote and press the boost post button to see further options
Choose from one of the 3 promotion options.
After you have made your selection(s), choose a payment gateway and press boost now.