I go in to pc World for a new printer. There's the huge adverts "HP Envy 5020 £39.99p". I jump in, job done. I print off the net for 10 weeks no prob apart from buying ink every 10 seconds, but on the first photo I print it's rubbish so I take it back to PCW thinking they can keep it and I'll use it as a bargaining chip to buy a Canon printer. So the manager shows me the receipt and I had in fact bought 2 items originally which are clearly listed but not mentioned to me at the time,,, Printer £29.90p Customer Service Guarantee £10.00p. So they took the old printer back. Cost of new Canon worked out to £100 (minus £29.99p printer, minus £10.00p Guarantee cost, minus £10.00 goodwill = £50. So I got a half price printer. If they had not pointed all this out I would have told them to scrap the HP and would have paid 99.99p for the Canon. They offered me a new PC Guarantee for £21 which I declined and said I would rely on the 12 months guarantee. I told them that's what I thought would happen with the HP but they had cocked it up.