Hi there @jillhogg and welcome to the Community!
Ordering a SIM card can take 2 to 5 business days and depending on your location, it can sometimes take up to 10 business days. Occasionally, you may not receive a shipment confirmation email within 2 business days of placing your order due to high demand for certain equipments or busy times of the year. In such situations, we apologize. We’re working as quickly as possible to get your order to you!
That said, have you reached out to our customer service department through one of the following channels? They'll be able to track your order and provide you more information on your situation.
Hope that helps!