I'm assuming this is a high-touch sale. In that case, you are talking to your customers all the time and should be able to see why they opt out of your service.

I'm assuming this is a high-touch sale. In that case, you are talking to your customers all the time and should be able to see why they opt out of your service. If indeed it's the recurring model, you should offer them the commission model and see how they bite. It also might have something to do with how it's presented - what is the site? The other thing to consider is how much money you have to burn... commission model typically takes longer to make serious bucks.