@Edent
Off topic..
I have a sim that costs me 1 quid a day for the days I "use it".
I use that SIM for my vehicle trackers. I SMS my vehicle tracker and it replies (via SMS) with it's location. So it costs me a quid each time but if I don't use it then it costs me nothing.
I've spent two quid in five years for vehicle tracker comms.
Afaik it's a vodaphone offer but I can't remember cause I never use it..
Weird edge case I know but thought you might appreciate.