Their website is set up so it doesn't appear that when your order - the order actually is completed - so you try to order again -- ultimately creating Duplicate orders charged to your card without your knowledge. It's only when you receive an email confirmation do you learn the order was processed.
When I sent an email within a few minutes to their customer service Dept, as well as a follow up phone call to them to cancel the orders they gave me the run around and their automated system sent 5 orders out and charged my card for all of them -- it's been a huge hassle REFUSING their automated shipments and they can care less and do nothing about their screwed up e-commerce site.