Poor service & food

Popped in for a fresh salad on a hot day, about midday. They only had one salad available. I opted for a beef burger & salad with a milkshake. When I received my plate & started eating the lettuce it noticed that it was discoloured and more yellow than green. I had 2 bites on the burger but it had a strange taste I called the waiter & told him. I sent it back and I received the famous “I’m sorry”. I asked for the manager & she came with an apology. To add insult to injury the waiter came with my bill & the burger was included. I went to the kitchen & asked for the chef & was received by most of the staff trying to stop me from going into the kitchen. The “manager” came and told me to go in such a rude way. I told her I want to pay for the milkshake I consumed & she rudely told me to go. I have been there on numerous occasion's but that was my last. Will never put my foot in that stop. The staff is like headless chickens. A Fish rots from the Head.