Can you tell me more about what is happening with Text to Join? Are you having trouble setting it up or following the process?
I did some more research on this for you and found that we are experiencing a difficutly with Text-to-Join. You can try clearing your cache or trying another browser and you should be able to access Text-to-Join.
I have opened a case within your account documenting that you were affected by this. Would you like to be notified when this is resolved?