Has the laptop ever been sent to PC Services or tech guys? Also which number have you called, 0870 242 444 is useless normally in my experience but 0870 901 3000 (Tech Guys is the best one) as they will book a laptop if it has a constant fault and will either repair it by fitting new parts or replace it if the laptop is deemed beyond economical repair, or goes over the 6 week rule. As for receipts all PC World should be able to find them on there system by suing a Post Code and surname and normally can help more. Hope this helps.

You may be able to get a £100 Refund, PC World have a price promise scheme but it is down to the store if they allow it or not. If you find a cheaper price within 7 days of buying the laptop they will refund the difference. So they should honour the £100 refund, or otherwise they may give you £100 Worth of store stock in exchange. If you brought it on a credit agreement then you won't be able to receive the £100 to my knowledge but they should honour the £100 refund and allow you to exchange it for Items up to or over that value of £100 (if over you may ahve to pay difference). Seeing that its been now 8 days you may still be able to claim it but like i said before it will be down to the duty or manager on that day. Eavch store is different my local Pc World do it up to 7 Days they may do it up to 14 but there procedures is 7 days only. Good Luck with it.