I have one of them sim cards that gives you 300 free texts but you get them on a certain date, anyone know how to find this date out?? Cheers.

Ring 02?

it's the date you first top up the phone from. You can find more information on this on the O2 website, there are certain rules about if you don't top up within a month or something.

i'm sure you get a text reminding you to top up also.?

several in fact

i used to have a o2 geenie sim card and i called 4444 i think and if you follow the menu it will tell you how many texts you have left and when your free texts for that month will expire

ring 4444 an keep pickin option 2, should tell ya on da

You can reset the date just by topping up on a different date. IIRC.