>>We gather and market Mortgage Leads for Lenders/Brokers Nationwide.
If I understand your more detailed explanation, this is a very fair and succinct description of the site. But think about it this way -- that is not about providing mortgages to consumers, it is about providing marketing services to companies. If the site can be properly listed anywhere, it must be somewhere under Business/Industries/Marketing.
What you say about not being an "affiliate link" is true. However, within the editing community, this kind of site (collecting information from customer, and delivered to an often anonymous company) is also loosely called an "affiliate site" although we might also call it a "reverse affiliate" or "blind affiliate" or "blind doorway" site. Since the editors can't see what you are doing with the data, they don't really know whether you are processing it within Thornton Mortgage, shipping it to ABC Mortgage Company, selling it to several companies, or broadcasting it to identity thieves in the third world. In this case they made the (charitable but perhaps wrong) assumption that the data went to Thornton Mortgage, so a person who wanted to go to TM could, well, go directly to their website.
I believe that, even given the explanation like you gave here, the editor still did the right thing...because (to coin an admittedly obscure aphorism, which perhaps only editors will understand) "we review websites, not descriptions thereof."
As to the second issue: ODP has guidelines about picking which of several possible URLs to use for a site. Helping sites track visitors is explicitly NOT a factor in that process. All we can say is, "Sorry, but that needs to be a matter for your own technical support people. The only help ODP can give you is an excellent directory of sites containing technical information or offering technical consultants."