Pretty sure that used to be the case, and I might have missed it in the link provided by OP, but assuming that's the full T&Cs in the link, it doesn't actually say you can't use the vouchers on a match day. As should be the case anyway. Vouchers take very little longer to process at the tills...
There's ZERO by way of validation on the current Survey Monkey 'solution' other than to enter mandatory fields. Tried filling all the fields with garbage this morning and was gobsmacked to be taken straight through to the 'Submit' screen. Woe betide any fan who gets even one of the question...
I'd be happy to settle for half of that with no strings attached. Just sell the ticket back to the club for a tenner, no questions asked, no 'match must be a sellout' proviso, then give them the opportunity to re-sell it for £40 or whatever. We already get a decent deal on season tickets, and...