You can have as many sites for different customer groups as you like, but ODP will only list the main site for your business if this site qualifies for a listing.
In case toscanet.com is not your main site then you can make an update request using the update URL form in the category where it's already listed. You'll be given the opportunity to explain why you want your existing listing to be changed. The editor who reviews this update request may or may not accept it.
You should not submit sub-sites, mirrors, or your main site several times to the same or different categories. Repeated attempts to do so may be considered spamming the directory any may result in all of your sites being banned. There are only a few exceptions when a site can have multiple listings.
