What happens when its due to take its payment from your credit and you dont have enough to cover it. Does it stop like the free texts and unlimited on O2 do and then wait until you top up?
you get 3 days from when u get the txt saying they will take the money if u don't top up within the 3days they will cut it off till u pay and the people u have in the list the calls 2 u & them will be charged at the standed call charge