Why don't the club pick a random amount and the people who get them tickets have to send a selfie of themselves at the match then he club could check against a collection of of photos that the club could have on file from when you get your season ticket. Anybody who does not do it could be banned from going away for the rest of the season , it would also weed out the supporter club issue.
Thats what the Scotland supporters have to do for away games, they pick a random couple of hundred fans who ordered tickets and they must collect the tickets in person, if the named person doesn't collect it then they get bumped out the travel club believe.