[mirthlab]

Maybe for the phone number you can wait until they hit the "Send me a Text Message" button, then ask for it there. Since it's something they want to do at that moment it makes sense. Then you can attach the number to their account. They might be more apt to do it if it's obvious why you need the number.

I'm based out of Honolulu, Hawaii but I'm also in California every few months for work. Feel free to hit me up anytime: mark [at] mirthlab.com.