Bad service - Short food

I wrote a complaint about McDonald's Denlyn I they still did not respond. This is very bad service paying for something you don't get and the food was very poor quality. What kind of business is this I can't call Denlyn no phone number I can't even get through to customer service this is not on serious. No luck with getting any help from them but, I will keep pushing I'm sure I'm not the only 1.