I complete searches for Service Link 2 ways:

The first with hand written searches and mail in invoices.  Ive always been paid but it takes a little longer than the second.  Dont receive many of these, usually REO with full copies.

The second, you enter all search info into their website and bill invoices thru the site as well.   Payment is pretty quick.  All searches are billed on the first of the month and I usually have the check within 3 weeks.  Easy system, no copies required and I can print the typed report.