McDonald's century city bad service

Mcdonald canal walk

I always experience the best services at Mcdonald, today was something else. I ordered an oreo mcflurry, the lady helping me started making a choc Cara mcflurry. I then looked at my slip to find that the cashier had also written choc Cara Mcflurry. I then told the lady to say that it's not what I ordered. The manager was consulted and he said why didn't I say that it was the wrong order, I did and from there the staff there were just rude to me. The oreo chocolate made even had chunk of chocolates that was too much. It wasn't made in the normal way.