Here are some recommendations for you when signing up for free stuff either off this site, or somewhere else on the internet.

1. Do not use your real phone number, unless you either want to hear from the company, or know that you need to verify in order to receive the free item you requested.
2. Make an extra email address, through a place such as Yahoo, or Gmail
3. Come up with a business name, as many sites posted here are meant for businesses, and they usually will not send to individuals.
4. Looking to get some free stuff on your own? Email or call the company your interested in. Most companies will give you something for free.