When Wandsworth decided to do its own survey on the same subject, around traffic, transport and the congestion charge, they spent £17,000 and got 10,500 written responses. That shows what can be done rather more cheaply - about £1.60 per response, I think it works out. Isn't it legally the fact that it is only your written responses that will count towards your legally required consultation? You say you have just over 7,000 of those, which makes the cost about £180 per response. Doesn't that put a slightly different complexion on things?