If at any time you have a question about shipping or your order, contact customer service by phone or support ticket. I know we were down one person for the week in customer service so this may result in a delay.
USPS packages can be shipped on Saturdays, however it's unlikely as business mail is typically delivered five days a week, not six. UPS does not do Saturday pickups unless specifically requested. Monday is a Federal holiday and shipping will resume on Tuesday.
The dates given in emails are estimations based on USPS and UPS shipping estimations and are not guaranteed until you receive a tracking number from either carrier.