Discriminatory service at McDonald's Cavendish Square

Discriminatory service;

Ordered breakfast today and waited 15 minutes and had to remind staff about my order.

However, what's puzzling is that a lady of white ethnicity who ordered after me got her meal before me, with tray for sit down and serviettes.

Although I ordered sit down, I was not offered a tray neither did I get any serviettes, not even tomato sauce, which is standard when ordering sit down meals.

I feel that the elderly staff member who served me should treat people fairly and not discriminate as his actions suggest.