I called the number back and there was a long recording about a business they run going to small businesses with a credit/debit card processing fee saving opportunity. All business owners have processing fees for credit/debit card transactions and you would be marketing a method to save money by using this processing service. You would earn a portion of the amount the business earns as long as they keep working with their business. It sounds like a lot of basically business to business sales work trying to make sales without any guarantee of income.