As you all know I was at the Apple store yesterday with an appointment with a Genius.
My iPhone 5 has suffered constant No Service issues whereby once it lost the signal it never reappeared.
Well after a period of 10 mins I walked out of the Apple store with a replacement iPhone 5. Over 24 hours later I can report not having suffered any No Service problems.
So it seems I had a faulty handset. The difference now is so much better. I’m still keeping my fingers crossed.