An article in yesterday's Sunday Star Times alleged that officials working for mayor Len Brown approached staff at Voltare Restaurant in Manurewa, where Mr Brown dined on a Sunday evening in 2009, and asked them to make up a receipt for an $810 dinner, with details of beer and wine purchases omitted.
Council chief executive Leigh Auton yesterday said the council asked for the new receipt solely because the receipt it did have was lacking in GST documentation to support the GST claim back.
Mr Brown hit back today, saying the newspaper had totally overreached.
"We will be giving (legal action) serious consideration and that's all I'm going to say at this time," Mr Brown told the New Zealand Herald.
"It was a serious accusation that was totally wrong."
Mr Brown said the dinner was on a table at a fundraising dinner and was approved by council staff.
Mr Brown has previously said he had repaid the council for his personal spending, totalling $638.27 as part of the $16,977.22 he spent on the council credit card since becoming mayor in 2007.
He had used the council card to buy personal items because his family had only one credit card, and he had left it with his wife, he told Campbell Live last week.
Mr Brown has been leading the polls ahead of Auckland mayor John Banks for the mayoralty of the new Auckland super city, with the election to be held in October.
Manukau City councillors Jami-Lee Ross and Dick Quax, who are standing for Auckland's new super city council on the Citizens and Ratepayers ticket, which is aligned to Mr Banks, said there were still questions to be answered about Mr Brown's credit card spending.
Mr Brown said the credit card allegations were malicious attempts to discredit him in the run-up to the election.
The owner of Voltare, Daniel Nakim, reportedly told Radio New Zealand there was no request to exclude alcohol when the request for a new receipt was made.
