Under the current system, telephone companies allow 3rd party companies to submit charges which the phone company then includes in your bill, with no verification other than a list of names and numbers. The phone company keeps a cut and blithely bills away. Scammers have figured this out and will sometimes submit bogus charges, disguised under vague names.
This is why it’s always a good idea to scan your phone bill and look for suspicious charges. If you see a charge you don’t understand, Google it.