Customer service

Of the customers who register a complaint, between 54 and 70% will do business again with the organization if their complaint is resolved. The figure goes up to a staggering 95% if the customer feels that the complaint was resolved quickly. Customers who have complained to an organization and had their complaints satisfactorily resolved tell an average of five people about the good treatment they received.

That's actually intuitively quite appealing and easy to agree with.