3 months ago I purchased a laptop from pc world,prior to purchase one the questions I asked was,if I need a spare battery could I buy one,yes I was told we don`t keep them in stock but you can buy them online from partmaster and other sites.guess what I cannot find this battery for sale anywhere.What is particularly annoying is that partmaster is pc worlds own accessory and spares outlet.This is not an old model it is the advent 5712 pc worlds own brand.If I had known that I could not get this battery I would have purchased an alternative model.I travel regularly hence this purchase.without additional power back up this laptop does not fulfill the reason for its purchase.Can anyone tell me what rights I have and what I can do? Your advice will be appreciated.