That's fair enough. I didn't mind all that much. But then a few month later the calls stopped alltogether, then Zach went in and cancelled the $10 subscription manually on Paypal.
I didn't complain about the frequency of calls, but sent an email asking about the cancellation. That went unanswered. Sorry but this guy doesn't seem responsible.
And one more insight from this interview: http://www.twilio.com/blog/2010/12/awesomeness-reminders-mak...:
'...I made all the phone calls while I was high...'