We explain why it is hard to get hold of the iPhone 5s, and offer tips on how to find and buy the iPhone 5s in the UK. Read on if you are looking to buy a golden iPhone 5s. Why is there an iPhone 5s shortage? It's not unusual for a new Apple iPhone to be in short supply. Apple is the master of building anticipation prior to the announcement of its products. And the very nature of smartphone ownership combined with the cyclical calendar of iPhone announcements means that lots of existing iPhone owners wait for the new model before they upgrade. So dem