I ordered and received confirmation that i was charged for TT Premier. How can i get the download to start?

You would need to specify that you wanted a CD.  If you did not specify then your purchase is a Download.

Use this TurboTax website to check your orders and payments - https://shop.turbotax.intuit.com/commerce/orderstatus/orderstatus.jsp

If your order shows as a CD and download then sign onto your download account using the exact same User ID that was used to purchase the software - https://shopping.turbotax.intuit.com/unified/downloads?route=myaccounts

If the software is not in your download account and/or you have not received the CD then you will need to contact TurboTax support for assistance.  

Support is open from 5am to 9pm Pacific time

Use this website to contact TurboTax support during business hours - https://support.turbotax.intuit.com/contact/

Support can also be reached by messaging them on these pages https://www.facebook.com/turbotax/ and https://twitter.com/TeamTurboTax