This is the second unit that has failed owing to poor design: The cable between the charger is too thin, and breaks where it enters the strain relief (joke) at the body of the charger.
Vodafone and Nokia say this is because of wear and tear, and take no responsibility, but the charger never leaves the socket into which it is plugged in. I've had so many problems with Nokia/Vodafone over the years I'll be changing my handset and my service provider.
STAY AWAY FROM BOTH, THEY ARE A SHOWER OF SHITS.