i bought a graphic card from the barclays found that it was faulty. and I had to go through a hell of difficulties to get a replacement. I highly suggest you to avoid them, they will never never give you a replacement if what you bought is a faulty one. they would kill themself but will not give a replacement!!
take quotations from other unity plaza shops and atlast go to barclays, then ask for a quotation, showing them the other shop qoutations. you wil get the cheapest from there. Thats the trick.