If you need a new payg sim card try going to quidco and requesting
2 x tmobile sims or 4 x O2 sims
You get 50p just for requesting your free sims from TMobile and 15p per sim (up to 4 sims) from O2.
I'm not sure if this constitutes a hot deal or a freebie or a forum item or whatnot...or nothing at all but please be nice! my first post.http://www.quidco.com/o2-free-sim/