The payment screen may not appear for a variety of reasons such as network issues.Additionally, for domestic Chinese phones, please make sure that the One store app is running first. There have been cases reported in which the payment screen does not show up on certain phone models (vivo x Fold, etc.) when the One Store app is not running.This happens because the Android background component is not working properly due to manufacturer modifications. Launch the ONE store app again or allow Android background component control in your device's settings if available.