My store doesn’t have screens, so I’m unsure about how that works. For me, we have stickers that print. And sometimes stickers get lost because the machine runs out and people send orders through before I get new stickers in there. I always do my best to make drinks right away for people that are waiting. I won’t lie, sometimes I myself am too busy to leave bar to go over and try to get people a recovery card, and I should try more to be able to, but usually calling to speak with a supervisor or manager will help make sure your next drink is on us. I know it’s hard to speak up, I’m 100% the same way, I NEVER say anything cause I have anxiety like it’s nobody’s business, but you also completely have the right to get exactly what you want when you’re paying for a drink, and you shouldn’t be there for 15+ minutes waiting, either.