1. The refund will take some time to process. The specific refund time depends on the policies and processes of the payment platform, bank or merchant. Wait patiently for a while, or contact the customer service of the payment platform, merchants or training institutions to consult the refund progress.

2. Refund can be made in different ways, such as original route return, bank transfer or virtual account refund. Different methods have different processing time and flow. You can confirm the refund method with the relevant payment platform, bank or merchant, and verify whether the provided refund account information is correct.