On WheelDoggy.com the Service Providers (or "Helpers") must bid for each job and are given a rating by their customers after each job. In other words, they have compete for each job and be open to feedback by customers.
I've found that there are two types of Service Providers ... ones that see competition as something to be avoided so that they can take advantage of the people who hire them and the ones that see competing for business as a positive thing that will showcase the difference between themselves and their competition.
Which type of Service Provider are you?
What is your competitive advantage? Is your business set up to provide the lowest cost for the tasks you specialize in? Or do you provide outstanding service (which should be evident by your rating on WheelDoggy.com)?
Before you sign up as a Service Provider on WheelDoggy.com... think about how you want to compete and, more important, determine if your business systems and practices are in place to support it !