The invite texts are not going through to phones that use AT&T as their carrier. We get the message “This number is currently unreachable by text.”
Thank you for posting, @drrperovich. We are aware of the issue and we have a workaround to send text invites that have not been edited (click Restore default message to reset any autosaved changes). You can follow the status of the issue on our status page.
I get this a lot too - often it seems to be from people who have I-Phones -
although I am using a laptop…