Quote: gulfcoast_highwayman "I think you might be able to, as they insisted that I write the season ticket number of each member on the back of their respective voucher. They can just as easily take your number on the phone and mark your account accordingly, I suppose.'"
Last year I was told you had to hand it over in person to get the ticket. They kept my stub and clipped it up with others, marking my number on the back - maybe to keep a record / later check if needs be.
I agree they should just be able to tick a box on the computer so they can record it has been used - I'm not sure if they do do that, but I suppose there is no 'proof' of validity doing it over the phone. A (non member) friend could find your season ticket card in my wallet and then (if that way inclined) use it and ask to 'cash in' your voucher thus scoring themself free use of it and you being unaware it has been used.
That example of 'writing the numbers of the 4 passes on the back' makes sense as they can then at least keep them - those four vouchers won't be on 'the market' anymore for someone else to attempt to use, either against a different supporter number or the same one again.