FileTransfer.io is part of LimeWire, and support for both runs through one help desk. Write to us there and a person answers — usually within one working day.
The full list is on the frequently asked questions page.
If a link leads to content that breaks the law or your rights, report it through the same help desk and say what the link is and what is wrong with it. Reports are read by people, not by a filter, and a package that should not be there is removed together with its link.
Use the same form and pick the matching subject — it reaches the right people. For anything about plans, invoices or an existing LimeWire account, sign in first so the answer can be tied to your account.