I noticed an advert in a national newspaper for an oven and hob set for £239. I went and bought it and it was misadvertised. They advertised the oven in the paper and had for sale instore a completely inferior model. They tried to fob me off with saying that it was an "invitation to treat" and not an "offer to sell". Unfortunately for them, with me being incredibly well versed on consumer law I hit back with misadvertising, inducement to contract etc. They offered me a £20 gift card. I refused it and demanded an Indesit oven and ceramic hob set worth £699 for £179...they refused. I insisted before I "took the matter further". They agreed.
If you dont ask, you dont get.