Why do I need to give credit card numbers for something free
Don't do it. It's a scam.
... Don't do it..
Its called a scam
Because they hope you won't read the fine print and they can start charging you for services you don't really want.
Naw they charge you after the first month
It's either a scam or they are offering you a "free" trial of their product. If you don't cancel it, which most forget to do, they will charge your credit card. Stay away from offers like these.
I had tried to get something free the other day and they wanted money for shipping. I decided it wasn't worth it.
Trust me its some kind of scam to get your money don't listen to those ads