GAA should hand over receipts to match goers

I attended Páirc Uí Caoimh for the Cork Senior Football Championship final and having paid for my wife and I, I was shocked not to receive any form of receipt. 

Surely, in this day and age, this is not right. To his left were a bundle of €50/€20 notes and the obvious question here is - where is the accountability? Is the GAA relying on the honesty of the individuals on the turnstiles? While I realise that the gate clicks for each entry, how does the GAA differentiate between a full paying entry €20, a concession €10 or a child who may go in for free?

I would add that having discussed the matter with those sitting to the left and right of us on the stand, they were equally annoyed at not receiving a receipt for their money. Has this been cleared with the Consumer Protection Association? Has the GAA any obligation to their members and guests for monies received from them?