I know it's nothing to do with PCs but we purchased 8 Acctim wall clocks for our calssrooms from Argos. Not expensive - £8.99 each, but radio controlled and very accurate.
One of the clocks stopped, so I replaced the battery but to no avail. I rang Acctim to ask if I was doing everything needed to kick start to clock (no buttons to push and no knob to reset the hands). Immediately asked me to send the clock back (11 October), brand new replacement received today.
That's what I call service. It's a pity that some of our manufacturers of more expensive items don't take a leaf out of Acctim's books.