Breadcrumbs not displaying properly

I have a coupon setup in parent categories like this:
-Services
-Business Services
-Web Hosting

For some reason the breadcrumbs are appearing like this:
HOME/BUSINESS SERVICES/

Instead of HOME/SERVICES/BUSINESS SERVICES/WEB HOSTING/

Also, how can I change the category slug from /coupon-category/ to /coupons/

Thanks!