The following is copied from ther terms and conditions of a freebie site
(2) A user must provide accurate contact information including (but not not limited to) shipping address, telephone number and email address upon signup. Only one account is allowed per household, per person, per email address and per IP. You must be 18 or older to participate in this website.
Are they basically saying I can only use 1 ip?? I'm asking because some freebie sites let you use up to 2 ips.
No, most sites allow you to have as many IPs as you want, it is saying there can not be more than one account that used the same IP to sign up.