After you submit your Order Form, you will receive a invoice shortly with a online payment link. Sim Card orders are paid up front before they are shipped. Invoice includes the cost of the Physical Sim Cards and the cost of shipping. Data Service charges will not be billed until the following months invoice and only after you begin activating your sims whenever that is. You will continue to be billed monthly for your data services until you either Suspend or Terminate your sims. Sim cards are generally shipped out 2-5 business days or depending on stock inventory. Please contact us if you have any questions.