I too ordered from this site NUVALIFE ($5 discount on first product and free shipping) and soon saw the $19.95 charge on my credit card.
I called to find out what the $19.95 was about and they told me it is for the membership to their program so that you can CONTINUE TO GET WHOLESALE PRICES for all of the supplements you may want to order (this is in the language when I purchased - you MUST pay attention) and that you can CANCEL at ANYTIME - not like a contract where you are locked in for a year - so I decided to try it out.
I then ordered about $300 worth of supplements for $65 - and then called up to cancel my membership, which they actually did immediately and without arguement !!!
So I got my initial order ($5 off + free ship)--- for $14 --- second order for $65 ---1 month membership $19.95 = $98.95
...BUT the TOTAL value in stuff I got was over $378.00!!!
Moral of this story... PAY ATTENTION when you make a purchase online! This program might be useful for people who order loads of vitamins and health items each month and want to pay wholesale prices for all of their goods ... for me it was good for two orders of a ton of stuff and then I cancelled.