For those who have bought from i-herb before, do you notice long shipping times? I placed my first order with them on April 8, and got an email saying that I will get another email when my item has shipped. Well, I go to my account and it has a tracking number that I click on and it just says that USPS have been electronically notified of a shipment to send. I never did get another email saying my item shipped. Should I be concerned that my item still hasn't shipped even though it's been a week now, or is it just some wierd thing on USPS's end?