An Oamaru man was concerned to find he could vote multiple times in the text poll on Wednesday's TV One Leaders' Debate.
Malcolm McKenzie decided to experiment with the programme's text poll and sent in three votes within around 10 minutes of each other for his preferred candidate. He then sent in two votes from his wife's phone.
Mr McKenzie said each time he sent in a vote he received an automated text reply thanking him. There was no message saying he had already voted from that number and that his vote was invalid.
He said he was concerned people putting in multiple votes could have affected the outcome of the text poll, which had John Key ahead of Phil Goff with 63 per cent of the vote for preferred prime minister.
He said everyone he had talked to thought Mr Goff had done better than Mr Key in the debate and that the 63 per cent was too high.