Disgusting Customer service

Went to Mcdonalds Midway mall this morning to buy lunch, I stood at the counter unattended for about 5 minutes while people were there sitting and talking to friends from nearby shop, then finally the lady came to me as I was just completing my order on the kiosk thing since I figured it was the only way to make my order, the lady greets me so rudely and asks if I’m buying or not and I just let it go but she continues greeting me 5 times with an attitude. I asked for the manager and she gives the guy a call who is working in the counter not a manager I ask him if he’s the manager he says noo I should wait for manager. I spent my time and money for such rude disgusting and disrespectful service and my order then took way longer since I complained