I think it is. It's a bad sentence...the way I took it to mean is that it's either/or. So you have to be any one of the following things:
- aged between 18 and 22
- at university or college
- on apprenticeships or in their first jobs
- trying to find work
...will be able to buy a ‘Young Adult’ Season Ticket fixed at £299 across all stands
I might be wrong so I guess you'd have to ask the club. But I think it's like that, so if you're 24 but in Uni, or 23 and on an apprenticeship etc, then you can still be a Young Adult.
I hope that's what they mean anyway!