Power Text Pro insures that your marketing text messages are received by verifying that the cell phone numbers you upload to the system are valid. Every cell phone number that you upload to our system is validated prior to your first text marketing send. This only happens once per number. That validation uses one text message credit. Once a number is validated, each text message you send to that number thereafter uses one credit without the need to validate the number again. If you have any questions regarding this feature of our system, please call or email us.