Bad Service and Poor food quality

I would like to lodge a complaint against Kota Joe. I ordered a pizza & wings at Kota Joe Edenval , car service. I was happy w my order until I took a bite on the wings , I chewed on a stone which led to my Brace chipping off it I really had a bad experience therefore I’m still in pain and I now have to pay for the broken brace. I sent them an email a week ago , I received a response saying I should send a DM , which I did and still no feedback whatsoever. I’ve been sending follow up emails and no response still !! I’m honestly not happy not satisfied with Kota Joe as a regular customer!!