Unable to Send Message in RequestActivity on Android

Hi there! It's difficult to know what the root cause might be without any additional information. Some guesses are things like, OS version being too low, internet connectivity issues, etc. In order to troubleshoot this further, take a look at this article and provide as much info as is possible and we can see if we can help. To set expectations properly, troubleshooting a single user issue is very difficult, as the problem is likely on their side, but we can try!