Update: Rang my local o2. They've told me I cannot upgrade in store, under no circumstance. I've given them the reference number and they're ringing retentions to figure out why all this misinformation is being given out.
I am totally and utterly shocked beyond belief.
BTW: my housemate works for News International. I'm gonna make sure the reporters are aware, of this complete load of bollox and not print some huge success story tomorrow.
I've just been on the phone speaking to someone from O2 customers services (upgrade section) about my 'failover' page order. She also said that I can upgrade from Iphone to Iphone 3G in store after Friday.
Complete chaos. I seriously doubt I'd be able to get a new Iphone within 2 weeks of launch.