A. To reduce the number of promotional messages, go to the app settings. Look for a section related to notifications or messages. Here, you may find options to opt-out of promotional messages or adjust your notification preferences. If there is an option to block or mute specific contacts or numbers, use that to filter out unwanted messages.

B. Consider using the built-in spam filter if available. Check the app's help section for instructions on how to enable spam filtering. This may help in automatically filtering out promotional messages.