I suspect this might be what has happenedYeah just a note
"In some instances, we may generate your shipping label in advance prior to stock arriving in our warehouse. This is to enable us to ship your order efficiently and effectively as soon as stock does arrive. In this instance you will receive a fulfilment email & tracking number, however, this does not mean your order has been physically dispatched."
Just a heads up, exciting but doesn't mean they have any of these in hand yet.