So, you don't have access to your phone but need a verification text sent?
If your iPad is setup to receive SMS messages from your phone (which is a different setting than iMessages), then it will work if the phone is online and available!
However, if you are trying to send a verification code to your iPad because the phone number is not online and available, then, unfortunately, it will not work.
Fortunately, we can help you regain access to your account! If you run into this issue, please reach out to us at email@example.com for assistance! We want to help you keep saving!