Poorest customer service poor food quality and missing items

The poorest customer service in history 2 agents drop the phone on you when you call, you spend an hour on hold to speak to someone and they sound unmotivated to help you resolve your query. I placed an order through Mr D at McDonald's the order arrives cold missing items and the items that are there are wrong. You send pictures of what you got and they still want you to send more pictures to prove stale old chips. When you ask to speak to management because the agents are unhelpful they give the longest amount of dead air with no one giving any sort of feedback. I want my order refunded