Liverpool Chief Executive Rick Parry said: "The decision by the Millennium Stadium not to issue duplicate tickets is totally unacceptable and penalises ordinary supporters who have had the misfortune of being the innocent victims of a robbery.
"We do not understand why the Millennium Stadium have taken this decision, as duplicate tickets have been made available at every one of the six games we have played there since our first appearance in Cardiff at the 2001 League Cup Final. It should also be pointed out that every Premier League club is able to offer duplicate tickets where necessary.
"We are currently contacting every supporter who was sent tickets by special delivery on Friday to ascertain exactly how many tickets have been stolen.
"We will continue our dialogue with Football Association officials in an attempt to ensure that a very important part of the football family – as many Liverpool fans as possible - have the opportunity to attend the English game's showpiece occasion."