Maths Problem

[mariaem]

I've been asked a "trick" maths question, can anyone provide the answer? A man goes into a shop and purchases 100 items @ 25p each but only pays 75p in total - what has be bought?

[Catron]

He buys the numbers 1,0,0, to put on a door for example.

[dolly pond]

some were bogof......

[Littleowl]

3 boxes of matches
(with 33 matches in 2 boxes and 34 matches in the 3rd box)

[squarebear]

Or the brand name of the items is "100" as in "he bought Heinz items"?