How do SMS outsourcing companies make money by joining?

This kind of SMS outsourcing company will have special sales staff to find customers. After finding the customer, there will be after-sales personnel docking and sending the customer a price list, which is full of recharge items. For example, 0.3 yuan/SMS, you can send 10000 wechat if you recharge 3,000 yuan, and you can enjoy 0.2 yuan/SMS if you recharge 5,000 yuan. By analogy, the more fees, the more concessions, and the more outsourcing companies earn.