Tim,
It does not do you any favours to not answer a direct question; it is questioned why you have sent an unsolicited marketing email to a member of this forum. They did not send their email address to you, nor did they sign up for any newsletters or marketing.
There are specific laws around this, which it seems you may have breached. We have to be excellent in the way we handle personal data, and do not use it in a way not previously agreed.
As you know I look after the LEL website. We have subscription details there as well as rider and volunteer details. It would be so easy to use that data in a way it wasn't intended. But we don't. We use it in line with our published privacy policy. People are able to unsubscribe from LEL mailing lists at any time, and every newsletter has a clear and simple unsubscribe link. We do not share that data with third parties except as stated, and that's only if you're a rider for validation and insurance purposes etc.
So please be excellent also, answer the straight forward questions being asked of you, and give people a clear option to be removed from your mailing list. Then in future ask if people would like to be on your mailing list, and give them an easy option to unsubscribe at any time.
I was fairly relaxed about the email, but I am concerned about your evasiveness here and unwillingness to be straight forward in your responses. if as an organiser you need to find a better way to advertise your events, then surely that something for you to discuss with the auk board as to how they can help you and others in this regard.
Phil