This is what happened with me and this deal, Mandi.....I registered my daughter - then tried to get the sleepover kit. It kept giving me that ol' "Page Cannot Be Displayed" routine everytime I hit "send." Okay - fine. Then I tried to sign up for the sleepover kit a bit later that day and it said something like - "Since you are a registered member - you're already signed up to get the sleepover kit! There is no need to request it."
So - that's how it worked for me. Hope this helps!