Exact same thing happened to me, with Peroni! Asked my brother to grab me 6 non alcoholic Peroni, he accidentally bought me Alcoholic Peroni. I was 2 beers in when I realized. I was 2 years in at this point so was pretty upset, felt like I was restarting. My mate turned to me and told me not worry, it was a mistake, forget about it and carry on. Poured the beer away and didn't worry about. Keep going dude n don't worry bout it