Bad attitude and service at Charango

I went to Charango Grill & Bar for the first time, and wow, was I disappointed...We had booked a table with them for about 20 people. When everyone was ready to order drinks and the waiter started going around taking orders, he came to me and asked what I wanted, I rep**** that I wanted a 'Charango Mojito', to which the waiter responded that ****tails take a very long time to make and that I should just order something else. Their menu doesn't exactly have a large variety of good drinks, so the Mojito was something I wanted as nothing else was worth the price. The waiter continued to say that I should just order something else. I asked how long would the Mojito take to make and he said that he didn't know, which started to annoy me even more. Eventually he got my ****tail and it took about 10 minutes, which is reasonable. It tasted terrible and it was at that point that I realized that they didn't care. We sent one of the Mojito's back, but it really made no difference as the fresh Mojito still tasted *******. Then when I wanted to pay for my Mojito, the waiters said I couldn't and had to wait for the bill of over 20 people to arrive. What.