I am having the same issue. I was told an invoice would be sent when the shoes were ready to ship and have not heard from then for a couple of weeks. I just sent Luisa a message asking for an update. I feel a bit ticked off that I have paid for my order and for 1.5-2 weeks I get silence.
I did read back a page or two on this thread and checked my spam folder, nothing there (would be odd anyway because my conversations go directly to my inbox. I suppose it is best to give them the benefit of the doubt..