Setting limits on transactions. Recommended or required for a processing company?

Setting limits on transactions to be processed so that the business of the processing company could be successful does sound strange to third-party people. It would seem that the more transactions the payment service provider processes, the bigger the commission it will receive from the customers. And the limits seem to hinder the growth of the business of the payment company. Nevertheless, the system of limits is part of the control over the transactions performed by the processing company and serves as an important means of maintaining stability and security of the business.

Usually, online merchants do not know it, but international payment systems (VISA, Mastercard and others) recommend payment service providers to limit the number of accepted payment transactions carried out using the same bank card through the same merchant account (i.e. online store or mobile application) within one day. These recommendations vary depending on the type of online business.