Jumpingphil:
I thought when you buy these from other people, you get them to convert them to what you want and they send you the converted tickets.
So if someone was selling £10:00 worth of vouchers, you tend to buy them for £20:00 and ask them to convert them to what you want, say, for example, Adventure Island tickets. They would then send you the £40:00 worth of Adventure Island tickets.
So they have made £10:00 cash on the deal 'cos they sold £10:00 worth of tickets for £20:00.
You have saved £20:00 'cos you have got £40:00 worth of tickets for £20:00.
That's how it is supposed to work.
Both parties are winners.
I would speak to the seller about getting them to convert them for you.
Trouble is, I've already tried to convert them myself - in the same transaction as mine so she doesn't have them anymore, because I have them and have used them. I'm not sure if they will send them in my name and in hers, or just send me mine and her the ones in her name?