Question Author
Okay guys, thanks for all replies.
I would just like to point out that this was a T.J. Hughes store, not a small independant shop, and definately not a a mistake. These were factory printed prices prices that were simply crossed out.
On calling the manager, he told me with a 'smelly attitiude' that prices rise and the new stock cost more. On asking where the new stock was, he replied that it had not arrived yet. He even argued that VAT has gone up, more than week before it actually does!