If you looking for a sim card for your phone or merely want a back-up one just in case your current one goes belly-up, then why not help yourself to 4 FREE pay as you go sim cards from O2.
You can even transfer your old number if you want. But what’s even better is that if you top your O2 sim card with £15 a month, you get 500 UK texts a month FREE.
So you can text as many people as you like as much as you like each month – for FREE! No contracts, no tie-ins!