No...obviously. The £20 puts you on a list of people awaiting a laptop. As more people join your name is moved up the list. There are literally hundreds of these 'scheme' awaiting to dupe the unwary and idiotic. I will not bother you with the simple maths involved in these dubious referal/ladder schemes, suffice to say that you have an outside chance (aka nil) of getting a computer. Anyhow that laptop is not exactly an item that one would covet or sell your children for.
Old adage time........ If it seems too good to be true then it probably is.