Just remember that you have to register with mall.com through the mypoints link.
Also, according to information from mall.com, after the first purchase, you do not have to enter the site through mypoints. You just have to log in to your mall.com account, make your purchase and email your receipt/email confirmation to
[Only registered and activated users can see links. Either login above or
Register Now]. Although, if you are the type to not take chances you can go the extra step of logging in through mypoints each time.
It takes a full 15 business days before the points are credited.