The reason why I got the voucher in the first place was because I purchased a graphics card there. When I got home, the graphics card didn't work in my machine, yet it worked perfectly in theirs.
I protested that "upon the point of sale, I was confident enough to realise that this card would be compatible with my computer", which it should of been, but obviously something wasn't quite right. So I wanted a refund.
They nearly made me walk out the shop £60 out of pocket, until I eventually was able to get him to give me a gift voucher.
Even more strangely though, I spoke to someone a few weeks ago who went into PC world with a similar issue to me and got a refund almost instantly. No quibble whatsoever.
My unhealthy hatred for the place bubbles each time I go near it/think about it