As an alternative to the frequent complaints here, here's a note of recent excellent service:
I've had an Anglepoise lamp on my desk for many years. A week ago when I grabbed it a bit roughly, a couple of nylon struts fractured and the lamp collapsed in a heap of springs. A web search for spare parts brought me to anglepoise.com (based in Portsmouth) which showed images of a huge number of their lamps. The best match to mine was said to have been last sold in the late 1960s. It might have been a present from my parents around that time.
I contacted the helpdesk of anglepoise.com and they asked me to email them an image of the broken part. They didn't have an exact replacement, maybe the company has since learned that nylon only lasts a few decades. But they posted me a similar part made of metal that they thought might fit. I found that a combination of the old nylon spacers and the new metal linkage bar works fine. They wouldn't take any payment but I've made a donation to a charity they nominated.
So - excellent service of the kind not often encountered.
Mind you the retail prices of their new lamps are astonishingly high so perhaps they can afford to be generous. But if their free after-sales service lasts for over 50 years that does make a difference. Can anyone beat that?