IS THERE A WAY TO CONTACT TOPIX IF THEY AREN'T DELETING SLANDER ABOUT ME WHEN I REPORT ABUSE?

Go to Court. This is ABUSE and you may be able to get an order of protection from abuse against him. This would force him to take down the postings and not post further. Make copies (screen grabs, whatever) of what he is doing and file. In Delaware, it would be Family Court you would need to go to.