How long does Invisalign company take to send you vivera retainers?

I had traditional braces but instead of getting the Hawley retainers, I told my general dentist, who specializes in Invisalign, to order me the viveras. He took impressions of my teeth and told me he was going to ship them out the same day. It's been 2 weeks now and I still haven't gotten anything or a call from him.. Does any other Doctor know how soon you get the retainers?