Your bank may decline your Shein Payment Issues (https://www.setupyouraccounts.com/shein-not-accepting-or-unable-to-use-credit-card/) if your recent activity triggers their security system. The kind of activity that can trigger security includes an unexpected large purchase, an unusually high number of purchases over a short period or a purchase in a different country.

Hello everyone, tell me what are the main functions in payment systems?

Hello, I want to say that the main task of payment systems is to facilitate payment for customers. Geography and customer preferences are the most important factor. Before choosing a payment system, you should conduct a marketing research. Regardless of the region of the world, it may be convenient for your customers to use the payment Pay Now Button | The Payment Button Offered by - PayAdmit (https://payadmit.com/features/payment-button/) for secure payment.