A postpaid mobile phone is one for which service is given by an agreement with a mobile network provider in advance. At the end of each month, the user in this case is billed based on their use of mobile services. Typically, a customer's contract includes a limit or "allowance" of minutes, text messages, or other data, and the user is charged a flat rate for any consumption equal to or less than that allowance. Any usage in excess of that amount is subject to additional fees. In theory, a user in this position has unrestricted access to mobile services and, as a result, unrestricted credit. This service is better suited to persons who have a steady income and those who need to make frequent calls. visit us : https://payrup.com/blogs/what-is-a-postpaid-mobile-service-how-does-it-work