With every ticket you get a voucher containing the price of said ticket, to be used on the food stalls and rides.
The vendors and ride operators (hired by the event company) decided they didn't want to accept the vouchers at all so everything had to be paid for out of pocket, card only no cash.
£3.50 for a small bottle of warm water from a Lidl multipack with 'not to be sold separately' on it.
The food we bought and were hugely overcharged for from the Gyros van was awful.
DH went white when he was charged £31 for 4 chicken nuggets and chips.
We, along with many others, complained to the owner who seemed genuinely upset. He hired the vendors in good faith, paid them fairly and they screwed him over by deciding on the day not to accept the vouchers they'd been paid to accept.
We ended up spending a small fortune to do the bare minimum (a couple of rides and the shit food) so the kids got something out of the day but it was absolutely pants.
How can the vendors get away with doing that?!