State Opposition Leader Matthew Guy's claim that the Liberal Party had received no donations from the people at the infamous lobster dinner appears to have been contradicted by Frank Lamattina's presence at a $2000-a-head fundraising function.

Mr Lamattina – the host of the "mobster" lobster dinner at which Mr Guy dined with alleged Melbourne Mafia boss Tony Madafferi – recently attended a party fundraiser that raised $38,000 for another state Liberal MP.

Mr Guy said at a press conference on Tuesday: "There have been no donations from any of those people, certainly in my time as leader, in fact, in my time as planning minister, I understand as well. No donations that I'm aware of, and the party has checked its records of those people at that gathering."

Mr Guy has already been forced to clarify a number of facts relating to the dinner at the Lobster Cave restaurant in Beaumaris, including the number of people who attended and whether his office had been informed of Mr Madafferi's presence.