A. If you are experiencing frequent login issues, ensure that you are using the correct username and password. If you forget your password, use the 'Forgot Password' feature to reset it. Additionally, check your internet connection to ensure it is stable.

B. Clear the app's cache by going to your device's settings, selecting 'Apps', finding Rain Instant Pay, and choosing 'Clear Cache'. This can help resolve any temporary glitches affecting your login.