A Customer post an order using his phone number, the SMS Notification was never send. I tried reSend the SMS in the Order Page 3 times more, but it never works.
The phone number is a Celular Line located in México.
As a WorkAround, I asked my customer for and e-mail, and the process was finally completed succesfully.
I Re-Conigurate the Store, to ALWAYS ask for an e-mail, but I Would like a customer could post an Order with the phone number only.