They tell lies
Many years ago (about 14 years as it was windows 98 era) I had the misfortune to buy a computer from them. It had a modem. I asked specifically if it was a modem that worked entirely through hardware (i.e. not a "winmodem"). The sales droid said "I don't know, I'll ask the manager". Sales droid returned and said "Yes it is a hardware modem and not a "winmodem"". Guess what. They lied. The modem only worked in microsoft windows. Haven't bought anything from Dixons group since.