how can one claim that some new thing on an Orange phone / network is free for £15.50 a month
Simples Miss D, you are only paying for the 'service' rather than the handset.
Another phone one is where the latest Iphone or whatever is shown and at the end there is a little note at the bottom of the screen saying that the sequences have been shortened. Why the hell not just design the bloody thing properly so that the steps you see on the advert to do whatever function is being shown off are the ones you actually do?