Click on "Settings" at the top and the page and look under "General Setting". There is an option to receive email notifications for PM's. Make sure it is enabled.
It will not bring to the top of the page when you bump your for sale/trade add on this site. It will however bring it to the top of the "new post" and "what new" tabs.
I figured it out. Your initial listing was in the "Boat's/Jetski" section. The other two adds you listed were in the right spot but appeared as early relist.
I have moved the original thread from yesterday to the correct section. Sorry about the mix up.