The newly elected flagbearer of the Convention People’s Party (CPP)
He described as "untrue" and "unfortunate" claims that he induced delegates at Saturday’s congress.
He stated that he did not engage in media hype but rather adopted a "covert campaigning strategy" which worked in his favour.
He said he will unite his challengers in the flagbearer race because the CPP believes in working as a team.
Samia Nkrumah, has alleged that vote buying caused her defeat in the party’s presidential primary.
She said most of the delegates received between 200 and 500 Ghana cedis to vote for Mr Ivor Greenstreet.
Samia polled 579 votes, representing about 28.9% of the total votes cast, while Mr Greenstreet polled 1,288 votes to win the contest.
Speaking to journalists after her defeat at the congress, Samia said she would continue to support the party despite what she said was the bribery that characterised the election.
See also: Avoid personality attacks - Nana Addo to Greenstreet
"No; I’m obviously not happy with the results, but I accept them. The fact of the matter is that every delegate was paid GH¢200 and GH¢500 actually, among many other things. So, it was down to money and of course we cannot be happy about that but we accept the results, and we move on.
"There is a lot of work to be done and I will always serve the party. It’s a vision to serve not for an individual," she said.
See related: Greenstreet paid huge sums to become flagbearer - Samia
Mr Greenstreet on his part speaking after the congress said politicians should serve the people of Ghana rather than themselves with citizens getting equal opportunity to national resources.
"You cannot be showing love, if you are a policeman and you extort money from your poor citizens. You cannot be showing love, if you are a judge and you deny a poor man justice. You cannot be showing love, if you are a politician and you serve yourself and not the people of Ghana.
He stated that "Ghana’s first President, Dr. Kwame Nkrumah sacrificed his life for the nation so we would be dependent on ourselves, fight for our own sovereign country, and for us to get the maximum from our own resources."
"This is the beginning. We are offering ourselves as the vehicle for the frustrated Ghanaian who is tired of the bogus and empty promises of their leaders. We are offering ourselves on a new path in the digital age. We are offering ourselves to offer you service with honesty, service with commitment, and we believe that if you believe in us, we would provide the opportunity you all are asking for.