Did you receive any letter from an organization to pay fees for a particular service? WIPO has issued a warning notice on such letter:
It has come to the attention of the International Bureau that
PCT applicants and agents are receiving invitations to pay fees that do
not come from the International Bureau of WIPO and are unrelated to the
processing of international applications under the PCT. Whatever
registration services might be offered in such invitations, they bear no
connection to WIPO or to any of its official publications.
The invitations often identify a particular PCT application by its
international publication number (eg: WO 02 xxxxxx), publication date,
title of the invention, international application number, priority
information and IPC symbols; examples of such invitations can be viewed here.
PCT applicants and agents should note that it is the
International Bureau of WIPO alone which publishes all PCT applications
promptly after the expiration of 18 months from the priority date
(see PCT Article 21(2)(a)); there is no separate fee for such
international publication, and the legal effects of international
publication are set out in PCT Article 29.
In case of doubt in relation to such an invitation, please contact
the International Bureau by telephone +41 22 338 83 38 or facsimile +41
22 338 83 39 or contact your IP agent.