Sean I will answer your first question.
customers on this new scheme will be expecting the wc that gets them to have certain systems in place, take the text alert for example, not everyone offers that, but its very easy to add to your business, we do ours from a dedicated mobile phone on a commercial contract that cost £30 a month, which is nothing, very easy and cheap to add and so on.
there will be nothing corupt or hidden, it will be a genuine business which im starting, with regards to your second question, different customers will be worth different amounts to different wc.
All i can say is this, it will be cheaper and better than leafleting on large scales and paying other companies to knock doors for you.