We are from hospitality and we asked waiters if th...

We are from hospitality and we asked waiters if they are doing hospo discount and they said yes. At the end, we didn't get the discount because they estimated that we didn't facilitate their works as waiter. We were a big group (10 pp) and it is true that the orders wasn't easy because the bar was noisy with the rugby match but we were nice. They made a mistake about 2 drinks but it is ok, we didn't ask to change and we accepted the wrong drinks, we know how the job is hard and we respect people who are working in hospitality.
At the end, they decided to don't give finally the discount, we were very disappointed about the bar, especially about the behavior of waiters.