The National Party has confirmed that it paid in full when it used the SkyCity Convention Centre on its election night and on other occasions.
Prime Minister John Key, in Singapore for trade talks, has been quizzed on whether there has been any sweetheart deals between SkyCity and the National Party.
Asked whether his party paid for its use of the convention centre for its election night party in November, Mr Key said it was not his job to do party administration.
But the National Party's general manager Greg Hamilton confirmed the party had paid to use Sky City on every occasion at commercial rates.
The Prime Minister has come under fire from the opposition after confirming that he personally invited the company to make a pitch for a new convention centre.