Mc Donald's plumstead caused me bad food poisoning

Bought a milkshake from MR D from plumstead Mc Donald's.I consumed it and within 20 minutes of consumption I started getting bad stomach cramps then started vomiting and bad dia****a I have had this for two days no it's food poisoning. I tried to report Mc Donald's Plumstead on the Mr D app and up till now no response I am still suffering for bad cramps but vomiting just stopped Do not buy from Mc Donald's plumstead.