All of a sudden, this is looking quite complicated
The organisers are asking
me to register all attendees, including your home addresses and contact details AND pay for it all up front.
hmm, I'm trying to reason with them (to do it like MSV instead) but please think about whether you'd be willing to let me register your personal info, just in case.
@Rob Gaskin, can you have a think about whether we're happy to pay in advance for attendees and recover the money later.
(this may I suspect limit it to paid members only, which isn't currently a problem because everyone is a member!)