Pathetic !!!

I ordered a Cajun Chicken from Macdonnalds through Mr Delivery , order number DFD***1 I took a bite and saw a worm in my food . I am so angry disgusted . This was suppose to be my lunch and ended up making me feel sick . its the 1st time I ever experienced something like this . I called Macdonnalds Eikastad and they told me I should contact Mr. delivery . I asked the manager if they don't clean the lettuce and she told me they don't as the stuff is already packed . I called the driver as well and he told me I need to contact Mr . Delivery .... I don't have a number this is pathetic . I took a picture of the worm in my food