The information on the website is misleading. They ask for your credit card information up front before u can see add-ons, upgrades, etc. There is no check out page, Once you select instead of going to to check out page to verify the quanities, prices and shipping you are given a confirmation or your order without a purchase order number. In my case instead of a $45 charge mine was over $90. There is no phone number for immediate recourse for errors and i had to cancel my credit card to block the charges. In a word... stay away from this website.