Avoid Spectrum camera store Tottenham Court Road like the plague would be my advice.
Bought photography equipment for my partner so not up to speed in prices myself and they really seemed a nice group of helpful staff. Knew their stuff and spoke of having only one in stock etc and hey was Friday so I was rather tired.
I didn't mind paying £40.00 more for a Tamron lens than in Jessops as I should have shopped around but hey the filter! Charged me £25 (allegedlly a bargain reduced from £28.00!)for a basic Kood UV filter that costs between £9.00-£12.00 in other high street shops I researched.
When I called up to amicably resolve and suggest I had been overcharged in error perhaps they declined to be helpful and were positively rude! Stated there was nothing they could do as this is their price. So beware would be my advice!!!!