so how does the cell ringtone offer work without getting fully charged, im confused on that
You enter your cell number in the offer's space provided.
Then they text you with a confirmation text, asking if you want to do this.
You text them back with "Ok" or whatever they want you to text back.
Then you wait a couple of minutes and check your freepay account to see if it says offer complete. It took me about an hour.
After you see offer complete, text back "stop" (or whatever word they want you to text back to cancel), and it will cancel it but you won't get charged and the offer still goes through.
I used you as a referral when I tried it, I've done one of the offers but its not coming up on the status, but it will charge me £13.50 if I don't send a text saying STOP 
Text stop for now then. Try again later.