No magpie. If you want to enter either Daily Mail or Mail on Sunday reward numbers you take them from the back of the paper. Sometimes they have not been printed or if someone does not get a paper for any reason and wants to register some numbers he/she can contact The Mail and they will credit you with some.
However, you have to prove you have bought the paper in the first place and so you are asked a relevant question from that day's paper/magazines.
Such as, "Who is advertising on the inside cover of the Live magazine."
Each person is only allowed to do it so many times in a fixed period of time. That way, The Mail can pick up on who is actually buying a paper and who is just using the system to get credits on their reward account.
Make sense?