Slow Shipping

I know that shipping is very clearly stated to arrive in “3-7 business days.” This translates to around 10 calendar days for my order to arrive, usually. Occasionally something will arrive sooner, such as my recent Iman purchase. It took just 5 business days. Often, however, my item doesn’t even ship for 3 business days. It’s as if they are trying to make sure my item doesn’t arrive until that 7th business day. I would like to know if HSN and QVC have any plans to speed up their shipping.