Did you decide the vendors do the scanning so you could enable customers who aren't using connected smartphones?
On the surface it sends like the digital version of here's my wallet, take what I owe you if I'm just presenting a QR code that links to my event "wallet" to a vendor and they are set the amount to be deducted and confirm the transaction without my input. Is there a customer confirmation step, overcharging just hasn't been an issue, or you've figured something else out to 'prevent' that type of fraud?
I keyed on this because I've only ever really seen the reverse in the wild, where a vendor presents a bill with a QR code, and then there's either a confirmation or record of some sort that can be easily checked. Though I don't actually make these types of purchases myself, so I'm just going by cursory observations.
I keyed on this because I've only ever really seen the reverse in the wild, where a vendor presents a bill with a QR code, and then there's either a confirmation or record of some sort that can be easily checked. Though I don't actually make these types of purchases myself, so I'm just going by cursory observations.