Mr Cadogan made a dramatic departure from the business group earlier this month, cutting ties with it because of what he said were legal irregularities of the group and a ''slap in the face'' to efforts to build a positive relationship with it.
Mr Cadogan said he had gone to ''great lengths'' to improve the relationship between the office of the Mayor and the business group, and he and two Vincent Community Board members had been attending the group's meetings.
But he was then advised that non-committee members would be welcome only at every second fortnightly meeting, plus the breakfast meetings. He called that decision an ''absolute slap in the face to the efforts made to build a positive relationship over the last year''.
Mr Cadogan said the way the group had recently handled the election of its committee members also breached the rules of the group.
The business group last week emailed its members saying its interim management committee had replied to Mr Cadogan, but ''refrained from ongoing negative dialogue by media or email which would have been of no benefit to us as an organisation or we believe to our area''.
The email, which was forwarded to the Otago Daily Times by a member of the public, said the group was an independent, non-political group and was ''not answerable to any group except our members''.
It said the ''tone of the communication you have received to date [from Mr Cadogan] indicates that members of the management committee are people of little integrity. As our brochure clearly states we are a group of positive people volunteering to support businesses in our area, initiating projects and community events all designed to make Alexandra and Clyde attractive for businesses''.
The email acknowledged there had been some oversights in process and an aspect of its rules it would ''attend to''.
A subsequent media statement given to the Otago Daily Times this week said the group stood by the comments in the letter.
''We are confident that we have substantially interpreted the rules correctly and as has been stated in the letter the interim management committee are resolved to review the document as necessary.
''We are now determined to continue with the positive aspects of our work for the sake of businesses and the whole community, and to focus on our core activities ... We can confidently state that the positive support we have been given on this matter has been overwhelming.''
Mr Cadogan said he did not wish to respond to Mr Hambleton's letter, other than to address the comment about ''the tone of the communication you have received to date indicates that members of the management committee are people of little integrity''.
Mr Cadogan said he rejected ''totally any allegation that I have claimed or inferred or feel in any way that members of the management committee lack integrity and question how (and why) Mr Hambleton could claim this to be the case. Indeed, I consider several members of that committee to be personal friends.''
