Delight Mobile brings you the UK's best Pay As You Go deal. Standard prices:
UK Fixed(per min)-1p, UK Mobile(per min) -10p, UK text(per text) -10p, Mobile Internet 1000 MB Free each month after you top up , Calls to the same network - Unlimited, Texts to the same network - Unlimited
Also they offer very cheap international calls (calls start from 1p - landline, and 3p -mobile)
Is sound like good alternative for me.