Revolting attitude from Cubana Waitress

I cannot fathom the attitude that we received at Cubana in Claremont last night. On arrival our waitress ( whose name is Imma) did not pay us any attention and after sitting for a while we ended up having to call her to come serve us. Our orders took forever before we could get them and when we complained to her about how slow she was she did not pay us much attention but instead went on to help other customers. We had to wait for more than 10 minutes for tomato sauce that we ended up asking another waitress to bring us some. I am so disappointed in the lack of professionalism and courtesy that our waitress had and the worst part is that when we told her, while paying the bill, that she won't be getting a tip because she was not doing her job right she just said \She's very busy