bcubed If you compare a concession and a full season ticket, the difference in price per match is £8.40
The club charge £10 for an upgrade, so how is he pulling a fast one?
and
How is the club losing out, even if it is upgraded every game?
Incidentally they charged me £12!
Therein lies part of the issue. If the ST is a concession (it is implied but not stated in the original post by the suggestion that this is an upgrade), and the person borrowing it is an adult then your figures are totally irrelevant. The numbers that we need to be comparing are those for a concession ST (per match) and the cost for a full price match ticket. That difference is (I believe) in excess of £10 and so that is why the club restricts upgrades to only 3 for the season. I hope that helps.