The text of the Echo article indicated that the complaint was about lack of consultation in the planning application process. There was no mention of any commercial matters.
As far as I know, in a planning application, the near neighbours are sent a notice as part of the process. They also get posted on lamp posts or similar, and give basic details of the application and how to complain.
I know that if one of my neighbours were erecting a temporary structure that needed council permission, then I would expect to receive such a notice and would want to know why if I didn't.
Quote from tonight's Echo -
Law firm Kirwans said it contacted the council after a complaint from Wilkie Leisure Group, which owns New Brighton’s New Palace and Adventureland.
Boss David Kirwan said: “As part of three generations who have played such an important role in the development of New Brighton’s leisure offerings, they should at the very least have been consulted about the wheel.”
Wirral Council said Liverpool Fair Ltd would need to apply for planning permission and “follow the usual process” if they wanted to return to New Brighton during the summer or at any point in the future.