I have been using this for about three months and it comes in very handy ,the site sends you about one text a day to fill in a short survey and you get lots of texts and 46 minutes a month for free.
You can top up at post offices if you top up 5.00 you get more free texts .
IT costs nothing to you on the site it says you have to be between 16 and 24 (I am sure you can adjust your age )
Also good for teenagers.
Just thought I would let all you bargain hunters know .
www.blyk.co.uk/