Dealing with Plivo support has been pretty much the worst tech support experience I have ever had in my life (I've been in the computer industry since 1978).

I simply could not make them understand that I'm basically a hobbyist, that there's only about a dozen recipients, that all of them have spent hundreds of dollars for weather station equipment and demand these txt msgs, and that I'll never send but a few messages in a day.

Yes, I did "move" the entire project away from the winery website to my webhosting businesses URL. If you look closely at the winery website, there is still a link to the project, but nobody would look there as it's not called out in any plivo registration. If you believe plivo, no alcohol-related business will ever be allowed to market via txt msg. Yet just yesterday I read about an advertising company that is doing marketing for small wineries via txt msg...

Thanks for mentioning the HELP and STOP words. I explained to them that there was a help response which includes the URL to the website. I also explained that unsubscribe was done by a checkmark on a settings page in the website after the user has logged in.