Why did you pay for it? Pardon me for being harsh, but, your wife was perfectly within her rights to say 'No thanks', but, she went ahead, paid for it and then you come on here expecting sympathy. Last week I bought the Genie+, decided it was a rip off because I would have got two LL for the near $16 I paid for it the entire day, despite it being stated as 'non refundable' I got a refund from the lovely CM I spoke to about it. A few years ago I asked for a Frappucchino and wanted what was basically a 'skinny' version of it, it was disgusting and my own fault as it was my decision to have it like that, I went back in to the Starbucks at DHS and asked for the proper job frappucchino as I told them the skinny version was disgusting, I expected to pay for it, but, they exchanged it for free.
As for contacting Disney, if you had paid for a service ahead of time, like I did for a dessert show and the CM allowed someone in claiming to be me without checking ID simply because it was a woman on her own and when I turned up and proved who I was, instead of turfing the interloper out who was sitting in a great seat and thinking giving me, after ten minutes of faffing around, a rubbish table and no time to have a decent buffet, then yes, complain afterwards, but, your wife could have refused the drink, so I think it would be a cheek to contact Disney. Citing time constraints is no excuse.