i certainly dont want to get into an argument about it, i was just curious realy, it was a call from a promoter of an event that sounds like the one your talking about, there was no mention of any company taking part, i didn't realy ask as i new i couldn't do the gig, but they did say they were ofering £150.00 each performer, so i thought i should inform you just incase you could get some payment out of the organisers, but if yours is a charity organisation/event, then it must have been another event that i was asked about, hope i havn't coused any confusion and good luck with the event.
PS, edit, oops it isnt your event, sorrryyy, just checked with someone who's doing an event at the west end, and it defo isn't yours, its old age catching up to me, lol.