I don't really understand this campaign.

Vin is a very nice bloke who has a huge following. He also has an agent. Surely, its up to Vin and his agent to discuss things with the organiser and any decision taken is between those 3.
Are you sure your campaign doesn't have the adverse effect?

Sorry if I am not supporting the campaign, but I think the above 3 people are grown up enough to make their own decisions.

My only regret was not getting Vin to appear at my club, before it was closed. It wasn't becuase I didn't want him to appear. He was booked, but he became ill, and it just never happened after that.

I am more inclined not to book somebody if I feel I am being pressurised.

Leave them to it guys and gals.