[3.1 card rules is introduced](card%20rules%20is%20introduced.md) [3.2 set rules](set%20rules.md) [3.3 set up the integral rules](set%20up%20the%20integral%20rules.md) [3.4 set the prepaid phone rules](set%20the%20prepaid%20phone%20rules.md) [3.5 set the return card rules](set%20the%20return%20card%20rules.md)